Answer:
Total Contribution margin: 107,500,000
Step-by-step explanation:
Contribution: sales revenue - variable cost
normal price 5,000
peak-load price: 5,000 + 20% = 5,000 x 1.2 = 6,000
revenue
20,000 units at 5,000 100,000,000
5,000 untis at 6,000 30,000,000
Total revenue 130,000,000
variable cost:
25,000 units x 900 = (22,500,000)
Total Contribution margin: 107,500,000