Alpha manufacturing company produces a single product, which is known as sigma. The product requires a single operation, and the standard cost for this operation is presented in the following standard cost card:

Standard cost card for product sigma

(£)

Direct materials:

2kg of A at £10 per kg

20.00

1 kg of B at £15 per kg

15.00

Direct labour (3 hours at £9 per hour)

27.00

Variable overhead (3 hours at £2 per direct labour hour)

6.00

Total standard variable cost

68.00

Standard contribution margin

20.00

Standard selling price

88.00