6. The Superior Jumpdrive Company sells jump drives for $10 each. Manufacturing cost is $2.60 per jump drive; marketing costs are $2.40 per jump drive; and royalty payments are 20% of the selling price. The fixed cost of preparing the jump drive is $18 000. Capacity is 15 000 jump drives. a. Compute i. the contribution margin; ii. the contribution rate. b. Compute the break-even point i. in units; ii. in dollars; iii. as a percent of capacity