based on percentage plz not thier original cost

Current Attempt in Progress As the managing partner of Splish Accounting Services (HAS), Adam is trying to compare the profitability results of the firm's three different business lines: Audit, Tax, and Advisory Services. These three operating divisions are supported by three support departments: Billing, Human Resources, and IT. The cost drivers (or allocation bases) for each of the support departments, along with each department's usage of those services and its own original costs, are as follows. Rank the three support departments by their original costs, and then allocate the support department costs using the step method. (Round intermediate calculations to 4 decimoi places, es. 15.2516 and final answers to 2 decimal places, es. 15.25) Your answer is partially correct Rank the three support departments based on the percentage of their service provided to other support departments, and then allocate their costs using the step method. (Round intermediate calculations to 4 decimal ploces, c8. 15.2516 and final answers to 2 decimal places, es 15.25)