12 Sales Forecasting Methods You Need for Accurate Predictions

September 25, 2023
Sahith Krishna
Lazy Sales Reps is a myth

Alright, diving right in while none of us possess a crystal ball to predict the future of business, I've come to realize that sales forecasting methods come remarkably close. In my journey through the complexities of the business world, these tools have transitioned from being merely helpful to downright essential.

Sales forecasting isn’t just about numbers; it's a compass that guides businesses through budgeting decisions and strategic maneuvers. Regardless of the size or age of your company, I believe an accurate forecast is pivotal for success.

In this article, we'll delve into the different types of sales forecasting methods, shedding light on how they work and when to use them. 

What is sales forecasting?

Sales forecasting is the process of estimating future sales. It's a critical part of business planning that helps to make informed decisions about managing inventory, budgeting, setting sales goals, and growth planning. It's not about guesswork and assumptions, but interpreting data, trends, market conditions, and business intuition to create a roadmap for the future.

Sales forecasting depends on metrics like historical sales data, customer conversion rates, average transaction values, and sales cycle lengths. The factors influencing forecasting can be either internal - like marketing efforts, pricing changes, and sales team efficiency – or external, such as market trends, economic indicators, and competitive landscape.

Types of sales forecasting methods

Sales forecasting methods can be broadly divided into two categories: qualitative and quantitative. The choice of method often depends on the nature of your business, the data available, and the specific goals of your forecast.

Qualitative sales forecasting methods

Qualitative methods primarily use expert judgment and opinion rather than numerical analysis. Such methods are useful when historical data is limited or when launching a new product.

Qualitative sales forecasting methods
  1. Expert opinion: 

This method calls upon industry professionals or experts within the company for their insights into future sales. They consider market conditions, trends, and other relevant factors to generate a forecast. It is useful when launching new products or entering new markets where historical data is not available.

  1. Delphi method:

A group of experts anonymously answer a series of questionnaires, with the responses aggregated and shared with the group after each round. The process repeats until a consensus is reached. It reduces the bias of any single opinion and leverages the collective wisdom of the group.

  1. Salesforce composite method: 

Here, individual salespeople estimate their own sales based on their understanding of their territories and customers. These forecasts are then aggregated to form a company-wide sales forecast. It is often quite accurate, as salespeople are closest to the customers and are aware of their purchase intentions.

  1. Buyer’s expectations: 

This method directly involves the customers, asking them about their purchase intentions through surveys or interviews. It provides first-hand insights into customer thinking and plans, but it can also be time-consuming and depends on customers' willingness to participate.

  1. Market research 

This method comprehensively analyzes market trends, competitor activities, and customer behaviors to predict sales. Although it can be a complex and time-consuming process, it provides valuable insights that help align product offerings with market demand.

Quantitative sales forecasting methods

Quantitative methods are data-driven, relying on numerical data and statistical algorithms to predict future sales.

Quantitative sales forecasting methods
Accurate sales forecasting
  1. Time series analysis

Time series analysis uses historical sales data to identify trends, cycles, and seasonal patterns that are likely to repeat in the future. It is a popular and often accurate method, provided that market conditions remain relatively constant.

This method analyzes the sequential order and timing of past sales data to uncover underlying patterns and relationships. It employs statistical techniques such as smoothing, decomposition, and forecasting models to capture and extrapolate trends. By understanding the historical behavior of sales over time, you can make informed forecasts for future periods. 

  1. Casual models

Causal models predict sales based on cause-and-effect relationships between sales and independent variables. Also known as explanatory models, they're useful for understanding the impact of specific factors on sales. 

These models use techniques like regression analysis to identify how changes in variables like marketing spend, pricing, or economic indicators impact sales. They provide insights into the drivers of sales performance to assess the impact of different strategies or external factors. 

These models forecast sales based on the relationships between sales and one or more independent variables, such as advertising spend or price changes. The challenge with these models is identifying and accurately measuring the variables that impact sales.

  1. Regression analysis

Regression analysis is a statistical technique that identifies the relationship between a dependent variable (sales) and one or more independent variables (e.g., price, marketing spends). It helps you understand how changes in the independent variables affect the dependent variable. 

By analyzing historical data and applying regression analysis, you can develop regression models that can be used to predict future sales based on changes in the independent variables. This method can account for multiple factors simultaneously and provides insight into their relative impacts on sales.

  1. Pipeline forecasting

Pipeline forecasting uses current opportunities at various stages in the sales pipeline to predict future sales. It looks at each deal in a company's sales pipeline and estimates the likelihood of its closure. By combining these individual predictions, you can generate a forecast for total sales. 

This method considers factors such as the number of deals in each stage, historical conversion rates, and the average deal size. It provides visibility into the potential revenue that can be generated from the existing opportunities in the pipeline. However, the accuracy of this method depends heavily on the accuracy of estimating closure probabilities.

  1. Length of the sales cycle

This approach forecasts sales based on the average time to close a deal. The length of the sales cycle refers to the time it takes for a sales opportunity to move through the entire sales process, from the initial contact with a potential customer to closing the deal. 

The length of the sales cycle varies significantly depending on the complexity of the product or service, the industry, the target market, and the sales approach employed. It may range from days to months or even longer for larger enterprise sales.

Understanding the length of the sales cycle helps you estimate the timing of revenue inflow, plan resource allocation, and track the progress of opportunities in the pipeline. 

  1. Opportunity stages

Opportunity stages are key milestones within the sales process that represent the progression of potential customers toward a successful sale. It assigns a probability of closure to each stage of the sales pipeline and then multiplies these probabilities by the value of the opportunities at each stage to forecast sales. 

Here, each stage signifies a specific level of qualification, engagement, and advancement in the buyer's journey. Common stages include prospecting, qualification, needs analysis, proposal/presentation, negotiation, and closed/won. The main challenge with this method is accurately determining the probabilities.

  1. Mutli variable analysis

Multivariable analysis uses multiple variables or factors, both independent and dependent in forecasting. It uses software to analyze multiple variables simultaneously and predict future sales. This method can capture complex relationships among variables and is often more accurate than methods that consider variables in isolation.

This method considers various independent variables, such as marketing spend, pricing, customer demographics, and competitive factors, to determine their combined impact on the dependent variable, which is typically sales.  It allows you to understand how changes in multiple factors simultaneously influence sales.

  1. Historical forecasting

Historical forecasting uses historical sales data to predict future sales performance. Meaning, it simply assumes that future sales will follow the same pattern as past sales. But, it does so by analyzing patterns, trends, and seasonality in past sales data, to extrapolate historical trends to forecast future sales. 

This method is straightforward to implement and useful when historical data is abundant or when market conditions remain relatively stable. However, it assumes that the future will closely resemble the past, disregarding potential changes or disruptions. 

While historical forecasting provides a baseline estimate, it is better to complement it with other forecasting techniques and consider external factors for a more comprehensive and accurate sales forecast.

  1. Lead driven forecasting

Lead-driven forecasting uses the quantity (number) and quality of leads to predict future sales. It analyzes the historical data on lead generation and conversion rates to estimate future sales based on the number and quality of leads in the pipeline. 

This method tracks metrics like lead volume, lead sources, lead quality, and conversion rates at each stage of the sales process. By understanding conversion rates and average deal sizes of different lead types, you can forecast future sales by projecting lead quantities and their expected conversion rates. 

  1. Intuitive forecasting

Sometimes, experienced salespeople or executives rely on their gut feeling to predict sales. Yes, you read that right. 

Intuitive forecasting method relies on the experience, judgment, and intuition of individuals to predict future sales. Instead of relying on data and statistical models, this approach involves tapping into the expertise and insights of seasoned sales professionals or executives who have a deep understanding of the market and customer behavior.

You can use this method when there's a lack of historical data or when external factors are too uncertain for other methods. While it may lack the precision of data-driven approaches, it can provide valuable insights and quick estimations in situations where relying solely on data is not feasible or practical.

  1. Test-market analysis forecasting

Test-market analysis involves introducing a product in a test market before a full-scale rollout. It conducts a controlled trial of a product or service in a specific market segment to gather data which is later used to predict sales in the broader market. 

Businesses select a representative sample of the target market, implement marketing strategies, and monitor key metrics, such as sales volume and customer feedback. All of this data is used to make informed forecasts about the potential success of the product.

Test-market analysis provides accurate forecasting and reduces risk before a full-scale launch. However, it can be expensive and time-consuming.

Benefits of using sales forecasting methods

The use of appropriate sales forecasting methods not only supports immediate operational decisions but also provides a crucial foundation for long-term strategic planning. 

Benefits of using sales forecasting
  • Improved Decision-Making: An accurate sales forecast provides valuable insights into future revenue and profitability, enabling you to make informed strategic decisions. 
  • Enhanced Financial Planning: By estimating revenue, you can create more realistic budgets, plan for capital expenditures, determine potential profit margins, and manage cash flow effectively.
  • Inventory and Supply Chain Management: You can ensure adequate stock levels to meet customer demand, minimize storage and wastage costs, and reduce the risk of stock-outs or overstocks - all thanks to forecasted data.
  • Effective Resource Allocation: Sales forecasts help allocate resources efficiently, from personnel and equipment to marketing efforts. By knowing which products or services are likely to sell well, you can focus your resources on where they will have the greatest impact.
  • Mitigating Risks: Accurate sales forecasts can help anticipate changes in demand and adapt accordingly, reducing the risk of unexpected shortfalls or surpluses. 
  • Strategic Planning and Growth: Sales forecasts provide a roadmap for business growth. They help in setting sales targets, identifying potential growth areas, and planning for expansion. 
  • Improved Customer Relationship Management: You can better understand customer purchasing behavior and trends helping you to improve customer satisfaction, loyalty, and ultimately, sales.

Sales forecasting best practices 

Irrespective of which sales forecasting method/s you use, don’t forget to implement these best practices:

Sales Forecasting Best Practices

Data collection and analysis: The accuracy of any forecast relies heavily on the quality of the data collected. Gathering comprehensive and accurate historical sales data, along with data on market trends, competitor activities, and other relevant factors, forms the bedrock of effective sales forecasting. Proper analysis of this data can provide invaluable insights and trends to inform forecasts.

Luru may not be a forecasting tool but it does help RevOps and Sales Leaders to forecast revenue more accurately and confidently. How? It helps you better manage your CRM as more accurate data is made available through frictionless 1-click CRM updates from work apps, monitoring, and process automation.

Utilize technology and software tools: Modern technology and software tools can significantly enhance the accuracy and efficiency of sales forecasting. From powerful data analytics tools that can process vast amounts of data to AI-driven forecasting software that can predict complex patterns, technology is a vital ally in sales forecasting. Here’s a list of top sales forecasting software

Collaboration and cross-functional alignment: Sales forecasting should not be an isolated task handled only by the sales department. It should involve collaboration between sales, marketing, finance, operations, and other relevant departments to ensure a comprehensive and aligned forecast.

Continuous monitoring and adjustment: Markets and conditions change continually. So, regularly review sales forecasts and adjust them accordingly. Regular monitoring allows for early detection of deviations from the forecast, enabling swift adjustments and better decision-making.

To learn more about how to get sales forecasting right, explore our in-depth guide: How to Get Sales Forecasting Right.

Make confident forecasts from today

Accurate sales forecasting is crucial to business success, enabling improved decision-making, efficient resource allocation, and risk mitigation. Each of the above methods has its strengths and weaknesses, and they are often used in conjunction to provide more accurate and robust forecasts. Understand and choose those that fit your business model and market, while also following the best practices for success.

Sales Forecasting Methods

While you implement sales forecasting methods, don’t forget to check out a simple yet powerful tool - Luru. It's a sales process automation tool that brings your CRM to your fingertips so that you can update it from meeting apps, messaging apps, and any web page on the browser. 

Automating manual data enrichment for sales facilitates seamless CRM updates with just a single click from your work applications. This streamlined process is further enhanced by automated reminders to alert you about any missing data. Learn more about Luru.


  1. What is sales forecasting? 

Sales forecasting is the process of estimating future sales to make informed business decisions and predict short-term and long-term performance.

  1. Why is sales forecasting important? 

Sales forecasting is important as it allows businesses to anticipate future sales and profitability, plan budgets, manage inventory levels, allocate resources effectively, and make strategic business decisions.

  1. What are some potential benefits of sales forecasting? 

Benefits include improved decision-making, enhanced financial planning, optimized inventory, and supply chain management, effective resource allocation, risk mitigation, strategic growth planning, and improved customer relationship management.

  1. What are the three main sales forecasting techniques? 

The three main techniques are qualitative methods (like expert opinion or Delphi method), quantitative methods (like time-series analysis or regression analysis), and intuitive or experimental methods (like intuitive forecasting or test-market analysis forecasting).

  1. Which system supports sales forecasting? 

There are various systems, sales forecasting software, and software available that support sales forecasting, ranging from CRM systems, ERP systems, and specialized forecasting software, to advanced AI-based platforms. 

  1. How to do sales forecasting? 

Sales forecasting involves collecting and analyzing historical sales data, understanding market trends, and considering other influential factors. It also requires the selection and application of appropriate forecasting methods, continuous monitoring, and regular adjustments.

  1. How to improve sales forecasting accuracy? 

To improve accuracy, use high-quality, detailed data; leverage technology and software tools for analysis; foster collaboration among various departments; and regularly review and adjust forecasts based on changing market conditions.

  1. How can accurate sales forecasting help your business? 

Accurate sales forecasting can help your business plan effectively for the future, make informed strategic decisions, manage resources efficiently, improve customer service, and ultimately, enhance profitability.

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