Rainier Manufacturing Company uses the step-down method for allocating its support department costs to operating departments. The overhead costs of support Department A are to be allocated first, followed by the costs of B, and then those of C. The distribution of services is as follows: Service Supplied By A B C A 40% 25% Support Departments Reference page 577 8th Edition Required: B 10% 25% C 50% 15% Operating Departments X 20% 30% 20% Y 20% 15% 30% a. Calculate the percentage of B's costs that should be allocated to Y. b. Calculate the percentage of C's costs that should be allocated to B under the step-down method.

Rainier Manufacturing Company uses the step-down method for allocating its support department costs to operating departments. The overhead costs of support Department A are to be allocated first, followed by, the costs of B, and then those of C. The distribution of services is as follows: Reference page 5778th Edition Required: a. Calculate the percentage of B 's costs that should be allocated to Y. b. Calculate the percentage of C 's costs that should be allocated to B under the step-down method