why might a business want to forecast with accuracy
future sales of products
the effect of promotion on sales
possible changes in the size - nature of the market in the future
changing consumer trends and tastes
cash flow
external factors - interest rates and inflation
the way sales fluctuate at different times of the year
sales forecasting
the process of estimating the volume or value of future sales often based on previous sales data
sales volume
the number of units sold of a particular product/service
sales value
the sales revenue of a particular product or service by £ or $ value
main uses for sales forecasts
to avoid cash flow problems
to free up management time
to manage production capacity
to employ more workers
to start a promotional activity
purpose - avoid cash flow problems
accurately forecasting the sales and building a sales plan can help the business to manage their production, state and financing needs more effective and possibly avoid unforeseen cash flow problems
a sales forecast will help a business to write the income part of the cash flow forecast
purpose - frees up management time
a well-constructed sales forecast can allow the business owners to spend more time developing their business rather than responding to day-to-day developments in sales and marketing
manager will have more time to focus on the rest of the business
purpose - production capacity
can use a sales forecast to estimate if they need to increase or decrease production - help to see if they have enough production capacity to deal with expected demand
business may need to buy or rent new premises if there is a huge increase in sales forecast
purpose - employ more workers
if the business has high sales forecasts for a new product or service it may need to take on new employees to cope with new levels of demand
failure to meet required staffing levels could result in poor reviews or customer service and this may impact future sales
purpose - to start a promotional activity
if sales are forecasted to be very low and the product or service is not in the decline phase of the product lifecycle, the business may decide to try and increase sales through promotion and marketing
sales forecasts can also direct a business to a specific season or month when promotion activity would be likely to net the most sales revenue - christmas
factors affecting sales forecasts
consumer trends
seasonal variations
fashions
long term trends
economic variables
economic growth
interest rates
inflation
unemployment
exchange rates
external shocks
competition
time series analysis
a method that allows a business to predict future levels from past figures
describes what is happening to data or predicts what will happen to it
business is assuming that past figures are a useful indicator of what will happen in the future - likely if trading conditions are stable or if the business needs to forecast trends in the short-term, use of past data to predict the future is called extrapolation
what does a business want to identify in a time series data
the trend - e.g. sales of new products may peak then flatten (product life cycle)
seasonal fluctuations - large sales at times but not others (impact on cash flow)
cyclical fluctuations - highs and lows linked to trade cycle
random fluctuations - 'freak' figures from one off events (festivals, uncharacteristic weather conditions)
what might be the difficulties of sales forecasting
historical data may not reflect future performance
seasonality may affect sales
natural disasters cannot be foreseen
fluctuations in demand due to sales promotion, fashion, shortages etc
a new business will have no historical data to look at, will have to use market research data
subjective expert opinion
a product whose demand is highly sensitive to changes in price/income
terms used for sales value
sales revenue
revenue
income
turnover
sales volume
the number of units sold by a business, can be measured if different ways depending on the size of the business
sales revenue
the value of the output sold by the business
can be measured in pounds, euros, dollars etc
usually counted for a specific time period - a week, month, year
sales revenue is the same as total revenue
sales revenue formula
price x quantity of output
sales value formula
sales/selling price
fixed costs
a cost that doesn't change as a result of a change in output in the short run
variable cost
a cost that rises as output rises
total cost
fixed costs + variable costs
entire cost of producing a given level of output
average cost (unit cost)
cost of producing on unit
total cost/output
profit
profit = total revenue - total costs
factors of production (factor inputs)
land - natural resources available for production (trees, oil, land)
labour - the human input into the production process
capital - goods used in the supply of other products (machines, factories)
entrepreneurship - entrepreneurs have ideas, organise factors of production and take risks
short-run costs
the time period where at least one factor of production is fixed
long-run costs
the time period where all factors of production can vary
break-even
the point at which a business is not making a profit or a loss
total costs are the same as total revenue
break-even output
the number of items that a business must sell to reach break-even
before reaching break-even a business is operating at a loss
after reaching break-even each additional unit sold will contribute towards profit
when businesses sell a product or service, they pay for its own variable costs and then contribute towards the fixed costs, until there are enough contributions to cover all the fixed costs, the business cannot start to make a profit
contribution per unit formula
selling price per unit - variable costs per unit
expressed in pounds
total contribution formula
total sales revenue - total variable costs
break-even point formula
fixed costs/contribution per unit
margin of safety
range of output between the break-even level and the current level of output, over which a profit is made
margin of safety formula
actual output level - break even level of output
shows the number of sales that could be lost before the business makes a loss
break-even charts: fixed costs
fixed costs stay the same - horizontal line
break-even charts: variable costs
change in relation to the number of items produced - starts at zero and slopes upwards
break-even charts: total costs
start at the point of the fixed costs amount and then slop upwards at the same gradient as variable costs
break-even chart
variable cost is not usually added to a break-even chart
break-even
businesses should treat it with a degree of caution
based on assumption that costs and revenue will be static