which of the following is a tool used in an analytical review of inventory to see if inventory is being stolen? a. Subtracting Cost of Goods Sold from Net Sales, deviding the result by Net Sales, then comparing the result to the ratio for perior years. b. Deviding Cost of Goods Sale by the Avarage Inventory and comparing the result to that to that of prior years. c, both a and b d. Neither a and b