Colt Company produces two skateboard models. Machine time per unit for Hero is two hours and for Flip is one hour. The machine's capacity is 1,600 hours per year. Colt can sell up to 500 units of Hero and 900 units of Flip per year. Selling prices and variable costs follow. Required: (a) Compute the contribution margin per machine hour for each product. (Use cells A2 to C13 from the given information to complete this question. Negative amounts or amounts to be deducted should be input and displayed as negative values.) (b) Determine the best sales mix of products. Units produced and sold for most profitable sales mix Hours required to produce most profitable sales mix (c) Compute the total contribution margin for the best sales mix. Units produced for most profitable sales mix Contribution margin per unit Total contribution margin