Please help with #4 and #6. Thank you

$81 18 Product Pricing using the Cost-Plus Approach Concepts; Differential Analysis for Accepting Additional Business Crystal Displays Inc. recently began production of a new product, flat panel displays, which required the investment of $1,620,000 in assets. The costs of producing and selling 8,100 units of flat panel displays are estimated as follows: Variable costs per unit: Fixed costs: Direct materials Factory overhead $324,000 Direct labor Selling and administrative expenses 162,000 Factory overhead 36 Selling and administrative expenses 32 Total $167 Crystal Displays Inc. is currently considering establishing a selling price for flat panel displays. The president of Crystal Displays has decided to use the cost-plus approach to product pricing and has indicated that the displays must earn a 20% rate of return on invested assets. Required: Note: Round all markup percentages to two decimal places. Round all costs per unit and selling prices per unit to the nearest whole dollar. 1. Determine the amount of desired profit from the production and sale of flat panel displays. 324,000 2. Assuming that the product cost concept is used, determine the following: a. The cost amount per unit. b. The markup percentage. c. the selling price of flat panel displays. a. Cost amount per unit b. Markup percentage % C. Selling price per unit 175 52.56 267 3. Appendix Assuming that the total cost concept is used, determine the following: a. The cost amount per unit. b. The markup percentage. C. The selling price of flat panel displays. a. Cost amount per unit b. Markup percentage 17.62 C. Selling price per unit 227 % 267 227 3. Appendix Assuming that the total cost concept is used, determine the following: a. The cost amount per unit. b. The markup percentage. C. The selling price of flat panel displays. a. Cost amount per unit b. Markup percentage 17.62 % C. Selling price per unit 267 4. Appendix Assuming that the variable cost concept is used, determine the following: a. The cost amount per unit. b. The markup percentage. c. The selling price of flat panel displays. a. Variable cost amount per unit b. Markup percentage C. Selling price per unit % 6. Assume that as of August 1, 4,500 units of flat panel displays have been produced and sold during the current year. Analysis of the domestic market indicates that 3,600 additional units are expected to be sold during the remainder of the year at the normal product price determined under the product cost concept. On August 3, Crystal Displays Inc. received an offer from Maple Leaf Visual Inc. for 1,400 units of flat panel displays at $202.50 each. Maple Leaf Visual Inc. will market the units in Canada under its own brand name, and no variable selling and administrative expenses associated with the sale will be incurred by Crystal Displays Inc. The additional business is not expected to affect the domestic sales of flat panel displays, and the additional units could be produced using existing factory, selling, and administrative capacity. a. Prepare a differential analysis of the proposed sale to Maple Leaf Visual Inc. If an amount is zero, enter zero "O". For those boxes in which you must enter subtracted or negative numbers use a minus sign. Differential Analysis Reject Order (Alt. 1) or Accept Order (Alt. 2) August 3 Reject Accept Differential Order Order Effects (Alternative 1) (Alternative 2) (Alternative 2) Revenues Costs: Variable manufacturing costs Profit (Loss) b. Based on the differential analysis in part (a), should the proposal be accepted