Answer:
The amounts relevant for the selection of one contract over another are:
d. Contract revenue and labor costs
Step-by-step explanation:
a) Data and Calculations:
Contract X Contract Z Relevant
Contract revenue $200,000 $260,000 Different
Materials 10,000 10,000 Same cost
Labor 8800 120,000 Different
Depreciation on Equipment 8,000 10,000 Fixed costs
Cost incurred for consulting advice 1,500 1,500 Same cost
Allocated portion of overhead 5,000 3,000 Fixed costs
b) The analysis shows that revenues for the two contracts are different and therefore relevant, just like labor costs. However, the costs of materials and consulting advice are relevant, but since they are the same costs, they can be neglected in decision making. Fixed costs are not always relevant for decision making.