1.
Introduction [top]
Many
people are unaware of costs and waste scarce resources.
Cost
calculation is the way to calculate the total costs of making and
selling a product or providing a service.
How
can it improve the business?
-
Costing helps to set prices
- Costing helps to control and reduce costs
- Costing helps to plan for the future
- Costing helps to make better decisions
- Costing helps to write a business plan to obtain a credit
Steps
1. Identify cost components
2. Systematise costs
3. Calculate variable costs
4. Calculate fixed costs
5. Calculate total costs per unit
6. Set Prices, deduct the breakeven poin
2.
Identify cost components
[top]
What
cost components are involved in this enterprise?
PRODUCTION
- Manpower
- Raw
Materials
- Electricity,
Transport, Rent, Water, etc.
- Machinery,
Equipment and Tools
- Others
MANAGEMENT
- Manpower,
Entrepreneur’s Salary
- Stationery
- Telephone,
Rent, Electricity, Insurance, etc.
- Equipment
- Others
SELLING
- Publicity,
Promotion, Commissions, etc.
FINANCE
- Interest
List
all costs in simple tables, such as
Material,
electricity.....
| Items |
Quantity |
Costs |
Remarks |
| flour |
10 kg |
2 Birr
per kg |
(variable) |
| sugar |
10 kg |
5 Birr
per kg |
(variable) |
| .... |
|
|
(v or f) |
Machinery,
equipment, tools
| Items |
Costs |
Estimated
use |
Remarks |
| ..... |
|
|
(v or f) |
| dough
mixer |
6000 Birr |
5 years |
(fix) |
| .... |
|
|
|
Calculate
the labour costs per hour for each employee
Manpower
| Name |
Job
description |
Costs
per month |
Costs
per hour |
| ..... |
Administration:
... |
|
(fix) |
| ..... |
Production:
... |
|
(v or f) |
| .... |
.... |
|
|
Calculate
the working hours and the direct labour costs needed to finish the
product/service
Production
Process
| Step |
Time |
Executed
by |
Costs |
| ..... |
|
|
|
| ..... |
|
|
|
| .... |
|
|
|
The
cost of a step in the production process is calculated by multiplying the
manpower cost per hour of the employee executing this step and the required
time.
3.
Systematise Costs [top]
Make
the operator think about the difference between costs like rent and flour
(e.g. in a bakery) to deduce the concept of fixed and variable costs.
-
Fixed
costs are the sum of all costs required to produce any product. They do
not change when the volume of production/service is changed. Fixed costs
can include facilities costs, certain general and administrative costs,
and interest and depreciation expense.
-
Variable
costs are costs associated with producing additional units. They do
change with the volume of production/service. They can include direct
material and labour costs, transportation and sales commission expenses.
Variable unit cost: Cost associated with producing one additional unit.
-
Total
costs: Sum of fixed costs and variable costs.
This
concept implies that (due to contracts, commitments etc.) fixed cost
components can be reduced only after a certain period of time.
In
principle, the classification of costs depends on the type of production.
Furthermore, some components, can be both fixed and variable in the same
enterprise: Electricity consumed by a production unit is variable, while
electricity for the office building is fixed cost. However, there are some
rules of thumb:
-
Raw
materials usually cause variable costs
-
Productive
work being directly related to the product/service causes direct labour
costs which are variable.
-
Administration
costs are mostly fixed costs.
Examples
of fixed and variable costs
| |
Fixed
costs |
Variable
costs |
| |
|
Bakery |
Carpentry |
Retailer |
Services |
|
Items |
Administration
expenses (Telephone, fax)
Stationery
Rent,
Electricity, Water
Transport
Public
services
Maintenance
Advertisement
Depreciation
Others
|
Flour
Sugar
Eggs
Salt
Butter
Milk
...
Electricity
Water
|
Wood
Hinges
Paint
Screws
Glue
....
Electricity
Water
|
Goods’
cost |
Materials
and spare parts’ used in the service
....
Electricity
|
|
Manpower |
Entrepreneur’s
salary Wages and salaries
(not
piece wage!)
|
Salary
per produced piece, per kg |
Salary
per produced piece |
Sales
commissions |
Fee
per delivered service |
Ask
the operator to classify one by one all his costs as variable or fixed. Does
he understand the difference between fixed and variable costs? Only when he
is able to classify his costs, he can calculate the fixed costs and the
variable cost per unit of each of its products, the basis of pricing.
4.
Calculate variable costs for each product/service
[top]
Variable
Costs
|
Item |
Cost
(purchasing
price) |
Used
quantity per unit (product, service) |
Cost
per unit
(Price
/ used quantity per unit) |
| Raw
materials |
|
|
|
| -
flour |
2
Birr per kg |
10
kg per 100 cakes |
20
Birr per 100 cakes |
| -
sugar |
5
Birr per kg |
1kg
per 100 cakes |
5
Birr per 100 cakes |
| ... |
|
|
|
| Labour
costs |
|
|
|
| Transportation |
|
|
|
| ... |
|
|
|
| (1)
Variable Costs per unit |
25
Birr per 100 cakes
0,25
Birr per cake
|
If
a unit produced is very small (e.g. cake) and during the relevant period
thousands of units are produced, it is not necessary to quote exactly the
quantity raw material used per unit. Rather, one can take quantities used
per 100 or 1000 units. However, at the end variable costs have to be
adjusted to one unit. (see example)
5.
Calculate fixed costs for each product/service
[top]
Fixed
Costs
| Item |
Cost/month |
| Rent |
|
| Salaries
(administration) |
|
| Depreciation
of building, machines.... |
|
| ... |
|
| (2)
Total Fixed Costs |
|
| (3)
Monthly production (in units) |
|
| (4)
Fixed Cost per unit (2/3) |
|
Depreciation
is the theoretical price to the use of an asset. One of the various methods
of depreciation, and the simplest one, is to divide the purchasing price of
the asset by his period of usage.
Example:
A machine costs 6.000 Birr and is supposed to work for 5 years
Depreciation
per year: 6.000 Birr / 5 years = 1.200 Birr per year.
Depreciation
per month: 1.200 Birr / 12 months = 100 Birr per month.
If
the business produces more than one product, the fixed costs first have to
be split between products as exactly as possible. The relation of total
variable costs for each single product can be used as an estimator for the
split up of fixed costs.
6.
Calculate total costs per unit
[top]
Add
up variable and fixed costs per unit
| (1)
Variable Costs per unit |
|
| (4)
Fixed Cost per unit |
|
| (5)
Total Cost per costing unit (1 + 4) |
|
7.
How cost calculation improves business
[top]
7.1
Price setting
To
set prices the operator needs the following information
In
general the price must be
To
make a profit, the price must be higher than the total costs of the product!
Hence, knowing the total costs of a product is essential in determining the
price.
There
are two methods:
-
The
operator takes his total costs per unit and adds a percentage margin to
get his selling price.
-
The
operator takes the prices of his competitors and makes sure that his
prices are competitive with theirs. But he has to make sure that his
prices cover his total costs!!
However,
only if the product is better than that of competitors and the operator is
able to communicate the additional benefit to the customers, he can charge
more than his competitors. (Þ marketing)
7.2
Deduction of the breakeven point
[top]
The
breakeven point is an estimate of the level of sales necessary to operate a
business profitably, i.e. how many units of a product must be sold at a
given price to make a profit.
The
following steps are involved in calculating the breakeven point:
1.
Identify the total fixed and variable costs of the business based on actual
results during a relevant time period.
2.
Calculate the contribution margin as follows:
contribution
margin per unit = selling price per unit – variable costs per unit
This
amount is available to offset fixed expenses and (hopefully) produce an
operating profit for the business.
3.
Calculate the breakeven point as follows:
breakeven
unit volume = total fixed costs / contribution margin per unit
If
sales exceed the breakeven unit volume, the business makes profit; if not,
the business makes a loss.
By
performing a breakeven analysis and then varying the assumptions regarding
sales levels and variable and fixed costs, the real factors behind the
profit potential (or lack thereof) of a business become more clear. This
process will highlight the most significant factors and assumptions
(particularly assumptions about the ability to set prices) in the buyer's
business plan.
7.3
Strategies [top]
Generally,
the sales price for a product or service should more than cover the variable
costs of producing that product, but the margin from sales must be enough to
cover fixed costs as well.
If
the sales price does not cover total costs, it can, however, still cover the
variable costs. Then an appropriate strategy would be to implement measures
to increase sales. If the market share can’t be modified, this can require
to reduce fixed costs, to make fixed costs become variable, etc.
But
if the sales price is below variable costs, it does not make sense to sell
more. With every additional unit sold, the operator increases his losses.
Then measures to increase sales would not be an appropriate strategy, the
operator rather has to reduce his variable costs. Reducing fixed costs –
though never unnecessary – would not be sufficient!
7.4
Ways to reduce costs [top]
Many
people are unaware of costs and therefore waste scarce resources. Making an
operator cost conscious is always a good point, particularly when he has the
potential to reduce costs (variable and fixed costs) without neglecting
quality.
-
Very
simple instructions are universal and easy to be carried out by everyone
-
Turn
off a tap which is running
-
Handle
your tools and equipment with care; clean your tools perfectly
-
Switch
off any unnecessary light
-
Switch
off machines, if they are not used for hours
-
Work
faster, but still be precise
-
....
And
according to the situation, more specific proposals have to be found...
Reducing
variable costs
-
Find
cheaper suppliers, but at the same or better quality
-
Find
others and co-operate to order larger quantities
-
Share
expenses with others
-
Optimise
the stock level: The higher the stock, the higher the interest expense;
but: the lower the minimum stock the higher the risk of running out of
stock
-
Improve
the workplace layout: Good workshop layout means that the product
travels and is handled as little as possible between processes from the
beginning to the end of its manufacture
-
....
Make
fixed costs become variable
[top]
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