Robert Williams recently fulfilled his long-time dream of opening a gym that offers spinning exercise classes for $10 per person. To differentiate his gym and better serve his clients, Robert provides a towel, a bottle of water, and an after-workout protein shake to each person participating in a class, at a cost of $1.77 per person. Robert employs four part-time instructors and pays them each $1,200 per month. He also pays himself a monthly salary of $5,700. Robert's other monthly costs are $1,700 for rent, $1,350 for depreciation on his 32 bikes, and $1,450 in utilities and insurance. (a) What is Robert's contribution margin per unit? (Round answer to 2 decimal places, eg. 52.75.) Contribution margin $ per unit (b) What is Robert's contribution margin ratio? (Round answer to 2 decimal places, eg. 52.75.) 96 Contribution margin ratio (c) Prepare Robert's monthly contribution format income statement. Assume that he teaches 4,200 clients. (Round per unit values to 2 decimal places, eg. 52.75 and all other answers to decimal places, e.g. 5,275) (c) Prepare Robert's monthly contribution format income statement. Assume that he teaches 4,200 clients. (Round per unit values to 2 decimal places, eg. 52.75 and all other answers to decimal places, eg. 5,275.) Per Unit S $ $ > V $ > $