please show all work and cearly seperate parts A, B, C, D and E

The following data pertain to costs and revenue estimates for a proposed new product (Endirance) to be manufactured by Great Lakes Electronies (GLE), Inc. (NOTE: The proditict is sobld only flironghi retailers. No wholesalers are involved) Culculate the following: a) Retailers' margin percent (\%) [Hint: You will need to first determine an average retail price for Endurance by dividing the dollar market size by the unit market size] (I point) b) Contribution per unit earned by MI Electronics (I point) c) GLE's contribution margin (I point) d) GLE's breakeven volume in units (2 points) e) GLE's breakeven volume in dollars (2 points)