Answer:
Starfish Enterprises
The reason that is not the cause of the difference in material usage is:
The cost of materials increased from the time of the estimate.
Step-by-step explanation:
a) Data and Calculations:
Units of materials used for the job = 300 feet
Standard units of materials for similar job = 260 feet
Unit variance = 40 Unfavorable (300 - 260)
b) Material usage variance does not concern with the cost of materials. Since it is stated that the materials price per unit remained the same in both instances, the cost of materials increasing is certainly not a factor for the material usage variance. The variance is caused by the other factors.