4-20 Job costing; actual, normal, and variation from normal costing. Michael and Gabitel (MG) is a law firm that specializes in writing wills. Its job-costing system has one direct cost pool, professional labour, and e, a single indirect cost pool that includes all supporting costs of running the law office. The support costs are " allocated to clients on the basis of professional labour-hours. In addition to the two senior partners at MG, there are six associates who work directly with clients. Each of the eight lawyers is expected to work for approximately 2,500 hours per year. Budgeted and actual costs for 2015 were: Budgeted professional labour costs $1,100,000 Budgeted support costs 2,000,000 Actual professional labour costs 1,320,000 Actual support costs 2,400,000 Actual total professional hours 22,000 hours Required 1. Compute the direct cost rate and the indirect cost rate per professional labour-hour under: a. Actual costing. b. Normal costing