A department's three-variance overhead standard costing system reported volume variances and unfavorable spending. The activity level selected for allocating overhead to product was based on 80 percent of practical capacity. If 100 percent of practical capacity had been selected instead, how could the reported unfavorable spending and volume variances be affected?
Spending variance Volume variance
a. Increased Unchanged
b. Unchanged Increased
c. Increased Increased
d. Unchanged Unchanged