please help me with all 3 parts, Direct Method, Stepdown Method, and Reciprocal Method

Class Examples for Cost Allocation for Multiple Support Departments Assume that the budgeted number of square footage and budgeted number of employees equal the actual for each, respectively. The cost driver for the Facility Service department is square footage and the cost driver for the personnel department is the number of employees 1) Allocate the two support department costs to the two operating departments using a. Direct Method b. Stepdown Method c. Reciprocal Method