13. Sales Training - Sales Forecasting


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Sales Forecasting Dr Earl Stevens, October 2009 :

Sales Forecasting Dr Earl Stevens, October 2009 13. Sales Training 10/08/2011 1

Getting the direction right…:

Getting the direction right… 10/08/2011 2

Sales Forecasting Introduction:

Sales Forecasting Introduction Introduction Sales forecasting is a difficult area of management. Most of us believe we are good at forecasting. However, forecasts made usually turn out to be wrong! Marketers argue about whether sales forecasting is a science or an art. The short answer is that it is a bit of both. Reasons for undertaking sales forecasts Businesses are forced to look well ahead in order to plan their investments, launch new products, decide when to close or withdraw products and so on. The sales forecasting process is a critical one for most businesses. Key decisions that are derived from a sales forecast include: Employment levels required Promotional mix Investment in production capacity Plant Capacity & Projected Utilization Availability of Raw Materials Working Capital Requirements Capital Expenditure Return on Investment 10/08/2011 3

Types of Sales Forecasts:

Types of Sales Forecasts There are two major types of forecasting: Macro forecasting is concerned with forecasting markets in total. This is about determining the existing level of Market Demand and considering what will happen to market demand in the future. Micro forecasting is concerned with detailed unit sales forecasts. This is about determining a product’s market share in a particular industry and considering what will happen to that market share in the future. The selection of which type of forecasting to use depends on several factors: The degree of accuracy required – if the decisions that are to be made on the basis of the sales forecast have high risks attached to them, then it stands to reason that the forecast should be prepared as accurately as possible although this involves more cost. The availability of data and information - in some markets there is a wealth of available sales information (e.g. clothing retail, food retailing, holidays); in others it is hard to find reliable, up-to-date information. The time horizon that the sales forecast is intended to cover . For example, are we forecasting next weeks’ sales, or are we trying to forecast what will happen to the overall size of the market in the next five years? The position of the products in its life cycle. For example, for products at the “introductory” stage of the product life cycle, less sales data and information may be available than for products at the “maturity” stage when time series can be a useful forecasting method. 10/08/2011 4

Basis for Sales Forecasts:

Basis for Sales Forecasts Sales forecasts can be based on three types of information: What customers say about their intentions to continue buying products in the industry What customers are actually doing in the market What customers have done in the past in the market Sales forecasts also rely on obtaining information on existing market demand: As a starting point for estimating market demand, a company needs to know the actual industry sales taking place in the market. This involves identifying its competitors and estimating their sales. An industry trade association will often collect and publish (sometime only to members) total industry sales, although rarely listing individual company sales separately. By using this information, each company can evaluate its performance against the whole market. 10/08/2011 5

Preparing a Sales Forecast:

Preparing a Sales Forecast Very few products or services lend themselves to easy forecasting . In most markets, total demand and company demand are not stable – which makes good sales forecasting a critical success factor. 10/08/2011 6

Many use a Time Series Analysis:

Many use a Time Series Analysis Many businesses prepare their sales forecast on the basis of past sales. Time series analysis involves breaking past sales down into four components: The trend: are sales growing, “flat-lining” or in decline? Seasonal or cyclical factors: Sales are affected by swings in general economic activity (e.g. increases in the disposable income of consumers may lead to increase in sales for products in a particular industry). Seasonal and cyclical factors occur in a regular pattern; Erratic events: these include strikes, fashion fads, war scares and other disturbances to the market which need to be isolated from past sales data in order to be able to identify the more normal pattern of sales Responses: the results of particular measures that have been taken to increase sales (e.g. a major new advertising campaign) Using time series analysis to prepare an effective sales forecast requires management to: Smooth out the erratic factors (e.g. by using a moving average) Adjust for seasonal variation Identify and estimate the effect of specific marketing responses 10/08/2011 7

Protanz Projected Revenues F2009:

Protanz Projected Revenues F2009 10/08/2011 8

Projected Plasma Proteins F2009:

Projected Plasma Proteins F2009 10/08/2011 9



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