Sales Management Sales Forecasting Topic 13. Sales Forecasting What is it? Why do it? Qualitative vs...

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Sales Management Sales Forecasting Topic 13

Transcript of Sales Management Sales Forecasting Topic 13. Sales Forecasting What is it? Why do it? Qualitative vs...

Sales Management

Sales Forecasting

Topic 13

Sales Forecasting

• What is it?• Why do it?• Qualitative vs Quantitative• Goal = Accuracy• Commonly Done by Marketing

Forecasting Overview

• Hard to do, but must be done• Shorter Time Frames are more accurate• Harder for New Products • No Substitute for Actual Demand• Done for Each Product, Territory, …..• Multiple Methods often used

Goal is….

• Accuracy• Accuracy• And• Accuracy

Mean Absolute % Error (MAPE)

• Why Mape (or MSE)?• All past forecasts• Does not control for external shocks

Patterns

• Trend• Seasonality• Cycle• Outliers

Market Potential

• Buying Power Index• NAICS• Trade Press• Chain Ratio• Leading Indicators

Qualitative Methods

• Turning Points & Shocks• Sales Force Composite• Jury of Executive Opinion• Survey of Customer Buying Intentions

Quantitative Methods

• Strong & Weak Points• Seasonal Adjustments• Naïve• Moving Averages• Exponential Smoothing• Other Methods

Naïve Method

• Previous Period = Forecast• More Accurate than you think

Moving Averages

• 2PMA• 3PMA• Ex 2PMA:• t1 = 100• t2 = 150• Forecast = 125

Exponential Smoothing

• 2 Formulas• Usually High Alpha (why done)

Exponential Smoothing Example

• Alpha = 0.9• 2020 = 1000• 2021 = 1200• 2022 = 1100• 2022 forecast = .9 (1200) + .1 (1000) = 1180• 2023 forecast = .9 (1100) + .1 (1180) = 1108

Regression

• Dependent vs Independent Variables• Can you get data?• Better than using dependent variable alone?

Trend Projections

• Why Done• Problems With

Most Firms Use > 1 Method