Prosperous Bank has three support areas (administration, human resources, and accounting) and three revenue-generating areas (checking accounts, savings accounts, and loans). Monthly direct costs and the interdepartmental support structure are shown in the following benefits-provided ranking. (direct method): Department Direct costs Admin. H.R. Accounting Checking Savings Loans Admin $540,000 10 10 30 40 10 H.R $360,000 10 10 30 20 30 Accounting $300,000 10 10 40 20 20 Checking $630,000 Savings $337,500 Loans $675,500