Wp corporation produces products x, y, and z from a single raw material input in a joint production process. budgeted data for the next month is as follows: product x product y product z units produced 1,500 2,000 3,000 per unit sales value at split-off $ 19.00 $ 21.00 $ 24.00 added processing costs per unit $ 7.00 $ 7.50 $ 7.00 per unit sales value if processed further $ 29.00 $ 29.00 $ 30.00 the cost of the joint raw material input is $149,000. which of the products should be processed beyond the split-off point