4.2.2 Calculations

There are different methods and areas of application for calculating the costs and price of a service. Calculations in commercial enterprises, in craft or industrial enterprises, in service and consulting companies or those of a freelancer differ significantly from each other.

Costing can take the form of preliminary, intermediate or final costing. As a preliminary costing or quotation costing, it serves to prepare decisions or the acceptance or rejection of projects and orders. Intermediate costing is carried out during the creation of products in order to control the adherence to cost budgets at the same time. In a final costing, the actual costs incurred can be compared to the cost targets. The final costing is a component of controlling.

Costing procedure

Different procedures can be distinguished.

  • Full cost accounting
  • Overhead calculation, division method, equivalence method
  • Industry-specific calculations

Full cost accounting

In full cost accounting, all costs of the enterprise are allocated to the individual products and services. Full costs include all costs incurred in the manufacture of a product or service (full manufacturing costs) or all costs incurred for the products sold in a period (full cost of goods sold).

The calculation of full costs in larger companies is only possible with the help of an allocation of overhead costs, since not all costs incurred in a company have a direct causal relationship with the products manufactured or sold. This results in a fuzziness in the determination of the costs of an individual service. This fuzziness should be included in the decision on the cost price.

If costs and activities can be recorded exactly for each production order, it can be recalculated on an ongoing basis. The choice of the lowest hierarchical level in cost unit accounting (usually the order) determines the possible level of detail of the calculation. Full cost accounting ensures that all costs are covered by the unit price of a quotation.

 

Example: Full cost accounting

A start-up wants to sell something. His monthly fixed costs amount to: 

Monthly fixed costs

  

 

   Entrepreneurial wages

  2.000,00 €

65%

+ Share of social security (approx. 25%)

     500,00 €

16%

= Total personnel costs

  2.500,00 €

81%

+ room costs

     300,00 €

10%

+ Overhead costs (general costs)

     300,00 €

10%

= Total fixed costs

  3.100,00 €

100%

+ variable cost share per order

Amount x €

 

= Total costs or full costs

Sum x €

 

Table 7: Full cost accounting

If the entrepreneur were to carry out only one order per month, he would have to calculate at least € 3,100 fixed costs for it, plus the variable costs for carrying out the order. If he could do two orders or a multiple thereof, the proportionate fixed costs of each order are reduced by the number of units.

Cost shares per unit of output

Units

 Fixed costs

1st order

1

  3.100,00 €

2nd order

2

  1.550,00 €

3rd order

10

     310,00 €

4. order

50

       62,00 €

 

The variable cost share per unit of output must be added to the fixed cost share. The profit mark-up must not be missing from this, provided it can be achieved on the market.

Example calculation: Break-even

Break-even is the profit threshold. If goods or services are sold, the break-even determines the intersection point from which profit can be made.

 

Graphical representation


 

An example from the conference sector:

For conferences, seminars or events, it must be decided with how many customers an event can be carried out to cover costs. Break-even is the point at which the break-even point is reached. 

A calculation makes assumptions:

-       Turnover: The fee for the conference should be € 250 per day and client plus € 35 for catering and hospitality. This means a total of € 285 per client. While the sales price is fixed, the number of clients who accept the offer is variable.

-       Expenses/costs: The fixed costs of holding the conference include: Speaker fees, conference rooms, advertising, administrative costs, costs of running the business including management; these should total € 5,100. These expenses are incurred regardless of the number of participants. The variable costs are dependent on the number of participants, such as catering (35 €) or working materials amounting to 50,- €, which are only claimed if the client actually participates.

The break-even rquestion is: With how many participants can a seminar calculated in this way break even? This is shown in the following break-even table. It shows how income and expenses change in relation to the number of participants. It is only with 22 participants that the income exceeds the expenses. However, the profit or loss threshold then rises progressively with each additional participant.

Tabular calculation of the break-even point

Participant

Remuneration variable

Proceeds

Remuneration variable

Proceeds

Fixed costs

Variable costs

Revenue

Expenditure

P&L

 

 

250 €/TN

35 €/TN

5.100 €

50 €/ TN

total

Total

 

... 9

2250

315

5100

450

2565

5550

-2985

 

10

2500

350

5100

500

2850

5600

-2750

 

11

2750

385

5100

550

3135

5650

-2515

 

12

3000

420

5100

600

3420

5700

-2280

 

13

3250

455

5100

650

3705

5750

-2045

 

14

3500

490

5100

700

3990

5800

-1810

 

15

3750

525

5100

750

4275

5850

-1575

 

16

4000

560

5100

800

4560

5900

-1340

 

17

4250

595

5100

850

4845

5950

-1105

 

18

4500

630

5100

900

5130

6000

-870

 

19

4750

665

5100

950

5415

6050

-635

 

20

5000

700

5100

1000

5700

6100

-400

 

21

5250

735

5100

1050

5985

6150

-165

 

22

5500

770

5100

1100

6270

6200

70 €

Break-even point

23

5750

805

5100

1150

6555

6250

305

 

24

6000

840

5100

1200

6840

6300

540

 

25

6250

875

5100

1250

7125

6350

775

 

26

6500

910

5100

1300

7410

6400

1010

 

27

6750

945

5100

1350

7695

6450

1245

 

Table 8: Break Even Point

 

The decision as to whether and under what conditions the event should be held is an entrepreneurial one.

Surcharge calculation

In overhead costing, the unit costs or cost price of a unit of output are calculated. With the help of overhead rates, which can be determined for example in a cost accounting sheet (BAB), an overhead rate is added to the direct costs in order to determine the cost of goods sold by way of a summary or step-by-step procedure.

 

Overhead calculation I

Scheme

+

Direct material costs

MEK

+

Material overheads

MGK

=

Material costs or cost price

MK

+

Profit mark-up in %

G

=

Selling price

VP

 

1. calculate material costs

   Direct material costs
+ material overheads=
total material costs

2. calculate production costs or also creation costs

+ direct production costs+
production overheads
+ special production costs
+ total production costs= production costs
(= material costs + manufacturing costs)

3. calculate overheads

+ administrative overheads (overhead)
+ sales overheads (marketing)
+ other special direct costs+
total administrative + sales overheads
= Cost of goods sold (= manufacturing costs + (administrative
and/or sales overheads)) (V+V)

4. calculate profit and surcharges

+ profit surcharge (17 %)

   Cash selling price+
discount (x= 3%)
+ agent commission
= target sales price 100%
+ discount (z= 10%)
= list
sales price
(= net offer price)
+ sales tax (19%)
= Gross sales price (= Gross offer price)

(cf. cost accounting for start-ups)

Table 9: Surcharge calculation

 

 

Overhead calculation II

An example in a company could look as follows: A gross sales price of € 34,652.11 is calculated from € 19,400.00 production costs.

Cost type

Subsidiary account

Amount in €

Direct material costs

 

10 500

+ Material overheads

500

=Material costs

11 000

+ Direct production costs

 

6 000

+ Production overheads  

400

+ special costs. Manufacturing   

2 000

+ Manufacturing costs

8 400

= Production costs

19 400

+ Administrative overheads

 

750

+ Sales overheads

1 300

+ Special direct costs    

380

+ V u. V*

2 430

= Cost price

21 830

+ profit surcharge 17 %

100 % = 21830

3 711

 

17 % = x

 

= cash selling price

x = 3711

25 541

+ discount 2 %

100%-3%-2%=95%

1 344,26

+ commission 3 %

95% = 25 541

 

 

5% = x

    

= Target selling price

x = 1 344,26

26 885,26

+ discount 10 %

100 %-10%=90%

2 987,25

 

90% = 26 885,26

 

= List sales price

10% = x

 

(net offer)

x = 2987,25

29 872,51

+ VAT (19%)

 

5 675,77

= gross sales price

35 548,28

(cf. cost accounting for start-ups)

Table 10: Example: Surcharge calculation

 


 

Pre- and post-calculation

In any case, the sales price must first be calculated, that is a preliminary calculation. If it is reviewed after some time, a post-calculation is made. In principle, this applies to all services that a company produces and sells.

In production, pre- and post-calculation is of particular importance because direct material costs and overhead costs cannot yet be determined exactly, especially during the introductory phase. The deviations must be determined and taken into account for future orders.

The following table shows exemplary values that can illustrate deviations.

  • For example, the post-calculation shows a cost of goods sold of € 23,230. The difference of € 1,400 to the preliminary costing of € 21,830 represents a cost under-recovery.

 

Amounts in

Pre-calculation

Post-calculation

Cost recovery

Direct material costs
 + Material overheads

10 500500

10 500700


-

= Material costs
+ direct production costs
+ production overheads
+ special cost overheads
+ manufacturing costs

11 0006
0004002
0008
400

11
2006 0004503
0009
450



-

Production costs
+ administrative overheads
+ sales overheads + special costs
+ (Sales + administrative costs

19 4007501
3003802
430

20 6508001
4001002
580

+ /-

Proportionate calculated cost price

21 830

23 230

- 1 400

(cf. cost accounting for start-ups)

Table 11: Pre- and post-calculation

 

In simple overhead costing, the total overhead costs of a business are added to the total direct costs for materials and wages and then divided by the sum of the output quantity produced.

In differentiated overhead costing, costs are determined step by step for the areas of materials, production, sales, administration, personnel, etc.

 

 

 

 

Example: Percentages of an overhead calculation

 

Cost unit accounting

 

 

 

Production quantity in pieces

10,000 piece

Cost price per piece

Percentage of cost price

   Production material

100.000 €

10 €

18,5%

+ Production wages

200.000 €

20 €

37%

= Total direct costs

300.000 €

30 €

55,5%

+ Overheads

240.000 €

24 €

44%

= Cost price

540.000 €

54 €

100 %

 

Table 12: Percentages of an overhead calculation

Division procedure

The division method is suitable for calculating unit or direct costs. The method is generally applicable. To determine the cost of a unit, the total cost is divided by the quantity produced.

 

Example: Simple division calculation

 

Total cost of production
55.800 €
----------------------------------------

Quantity produced:
 124,000 units

 

 

= Production costs
for 1 unit = € 0.45

 

Equivalence procedure

Equivalence costing is used when a company produces "several similar" products, e.g. bricks, drinks, dairy products, which go through the same production process but differ in shape, size, colour, etc. in the final stage. These differences are tried to be determined with the help of valuation or ratio figures. The unit costs of the different, similar products are determined with the aim of identifying the relationship between them. With the help of the equivalence number, the calculation can be considerably simplified.

 

 

 

Example: Scheme of an equivalence calculation

Variety

Power quantity

Ratio =
equivalent

Power unit

 

Total costs

Euro

Cost of the
unit of output

A

1250

0,8

1000

1500

0,8*1,5 = 1,2

B

2000

1,0

2000

3000

1,0*1,5 = 1,5

C

4000

1,5

6000

9000

1,5*1,5 = 2,25

 

 

 

9000

13500

 

 

 

 

1

1,5

 

Table 13: Equivalence calculation

The ratio is calculated by dividing the unit of output by the amount of output: 1000:1250 = 0.8, etc. The unit of output relates to the total cost as 1:1.5 (13,500: 9000= 1.5). Thus, the ratio of the output quantity to the output unit is 0.8 * 1.5 = 1.20 Euros.

In all cases, the business needs information regarding material costs, production costs, manufacturing costs, personnel costs and total cost of goods sold to make decisions.