need help with "c"

Note: Per unit expense for "total variable expenses" is supposed to be 7.45 NOT 7.5

"I'll never understand this accounting stuff," Blake Dunn yelled, waving the income statement he had just received from his accountant in the morning mail. "Last month, we sold 2,000 stuffed State University mascots and earned $6,565 in operating income. This month, when we sold 3,000 I thought we'd make $9,848. But this income statement shows an operating income of $11,615 ! How can I ever make plans if I can't predict my income? I'm going to give Janice one last chance to explain this to me," he declared as he picked up the phone to call Janice Miller, his accountant. "Will you try to explain this operating income thing to me one more time?" Blake asked Janice. "After I saw last month's income statement, I thought each mascot we sold generated $3.28 in net income; now this month, each one generates $3.87 ! There was no change in the cost we paid for each mascot, so I don't understand how this happened. If I had known I was going to have $11,615 in operating income, I would have looked more seriously at adding to our product line." Taking a deep breath, Janice replied, "Sure, Blake. I'd be happy to explain how you made so much more operating income than you were expecting." (b) Your answer is partially correct. Using the following income statements, prepare a contribution margin income statement for March. (Round per unit answers to 2 decimal places, e.g. 52.75.) Using the following income statements, prepare a contribution margin income statement for March. (Round per unit answers to 2 decimal places, e.g. 52.75.) Blake plans to sell 1,500 stuffed mascots next month. How much operating income can Blake expect to earn next month if he realizes his planned sales? (Round per unit to 2 decimal places and final answer to 0 decimal places, e.g. 5,275.) Operating income $ eTextbook and Media Attempts: 0 of 3 used (d) The parts of this question must be completed in order. This part will be available when you complete the part above