Algebraic method The following chart indicates the percentage of support department services used by other departments. Service departments are designated S1, S2, and S3; operating departments are designated RP1 and RP2. Services Used S3 RP1 RP2 Department S1 S2 S1 N/A 10% 20% 30% 40% S2 40% N/A 30 20 10 S3 20 30 N/A 40 10 Direct costs of the period were $170,000, $360,000, and $600,000 for S1, S2, and S3, respectively. Allocate the support department costs to the operating departments using the algebraic method. Note: Do not round proportions in your calculations; round your final answer to the nearest whole dollar. Note: Round your final answers below to the nearest 100; for example, round 8,668 to 8,700