TB MC Qu. 11-80 (Algo) Bonanza Co. manufactures products X and Y from... Bonanza Co. manufactures products X and Y from a joint process that also yields a by-product, Z. Revenue from sales of Z is treated as a reduction of joint costs. Additional information is as follows: X PRODUCTS Y Z TOTAL Units produced 34,000 Joint costs ? 34,000 ? 17,000 85,000 ? $332,000 Sales value at split-off $510,000 $255,000 $17,000 $782,000 Joint costs were allocated using the net realizable value method at the split-off point. The joint costs allocated to product X were Multiple Choice $127,500. $255,000. $142,800.