a. Assuming joint cost is allocated to each operating group using the profit before joint cost allocation as the basis for allocation, operating area after the allocation. Note: Compute the profit for each operating area after the allocation. Note: Round proportions to the nearest whole percentage and dollar amounts to the nearest whole dollar. b. What amount of joint cost is allocated to each operating group if the allocation is based on revenue? Note: Compute the profit for each operating group after the allocation. Note: Round proportions to the nearest whole percentage and dollar amounts to the nearest whole dollar