Robinson Products Company has two service departments (S1 and S2) and two production departments (P1 and P2). The distribution of each service department's efforts (in percentages) to the other departments is To From S S2 S1 S2 P1 P2 10% 20% ? 30 10% The direct operating costs of the departments (including both variable and fixed costs) are Sl S2 Pl P2 $180,000 60,000 50,000 120,000 Required 1. Determine the total cost of P1 and P2 using the direct method 2. Determine the total cost of P1 and P2 using the step method 3. Determine the total cost of P1 and P2 using the reciprocal methoo