Answer:
12%
Step-by-step explanation:
Contribution can be defined as the portion sales revenue that covers the fixed cost as it is not consumed by the variable cost.
Workings
Dept. Sales Cost of goods Direct Expenses Indirect exp Contribution
1 1,000,000 700,000 100,000 80,000 120,000
2 400,000 150,000 40,000 100,000 110,000
3 700,000 300,000 150,000 20,000 230,000
Contribution= sales revenue - direct cost and direct expenses
For Department 1 =
Contribution = 1,000,000 -700,000-100,000-80,000 = 120,000
Contribution as a percentage of sale =
Sales = 1,000,000
Contribution = 120,000
120,000/1,000,000*100 = 12%