3. Suppose that Cooplan manufactures four products: W, X, Y and Z. Output and cost data for the period just ended are as follows. # output units margin al cost per unit ($) number of productio n runs in the period 3 5 2 4 14 direc t labou r hours per units 1 3 1 3 Machi ne hours per unit 1 3 1 3 BKN 10 10 100 100 20 80 20 80 y Direct labour cost per hour is 10 $. Overhead costs are as follows: set-up costs 12500 short-run variable costs 4080 production and scheduling costs 9800 material handing costs 7500 Required Calculate product costs using the following approaches. (a) Absorption costing (6) ABC