Chalk Corporation produces products X, Y. and Z from a single raw material input in a joint production process. Total Joint processing costs are $245,000 Product 800 Product 2100 $54 Product Z 3500 $27 Units produced Per units sales at split-off Added processing costs per unit Per unit sales if processed further $9 $20 $50 $10 $35 $66 Based on the information above, which of the products should be processed further