CAR-79994 company purchases battery powered bikes from a manufacturer for $1,507 per unit and then sells them to its customers for $3,400 each. The company's monthly selling and administrative costs are the following: Costs Selling: Cost Formula $ 948 per month Advertising Sales salaries and commissions Delivery of bikes to customers Utilities Depreciation of sales facilities Administrative: Executive salaries Insurance Clerical Depreciation of office equipment $ 4,819 per month, plus 6% of sales $ 63 per unit sold $ 636 per month $ 5,056 per month $ 13,406 per month $ 688 per month $ 2,496 per month, plus $39 per unit sold $ 864 per month Last month CAR-79994 sold 60 units. How much was the company's total contribution margin for the month? O $108,780 O $ 95,220 O $113,580 O $ 90,420