Problem 4: Lower of Cost-or-Market Inventory Valuation (Ch. 09, 30 points) At 12/31/20, your company, a retailer's inventory data was provided in the table below: Inventory Ceiling Floor Market Final Number Cost/unit of Units Replacement cost/unit Selling price'unit inventory value $0.80 ? ? ? ? ? A B 500 200 $1.0 $1.5 $1.40 ? ? ? ? ? $1.5 $1.50 ? ? ? ? ? 300 100 100 ? ? ? D E ? $2.0 $2.5 $2.20 $4.90 ? ? ? ? ? ? Additional data: The disposal cost of each inventory A, B, C, D, and E amounted to 10% of the inventory cost. The normal (gross) profit margin of each inventory A, B, C, D, and E was 100% of the| inventory cost. Required a. C. Determine the selling price per unit of each inventory A, B, C, D, and E (Show your work) b. Complete the last four columns in the table above using the lower-of-cost-or-market rule (Show your work) Determine the total cost and final inventory value. Prepare the necessary journal entry at 12/31/20 to reflect the loss due to market decline in value of inventory d. Assume that your firm values the inventory using group of inventory technique (group 1 consist of A and B; group 2 consists of C, D, E), determine the total final inventory value