A factory produces an article A; this process yields B and C as by products. The costs are as follows:

Actual Joint costs

Subsequent cost

A

B

C

Material

10,000

1,500

1,300

1,000

Labour

1,600

200

150

100

Overhead

8,000

800

550

400

19,600

2,500

2,000

1,500

Estimated sales

30,000

24,000

20,000

Estimated profit

30%

25%

20%

Show how you would apportion the joint cost of manufacture.