xyz's flexible budget performance report for last month shows that actual indirect materials cost, a variable overhead cost, was $28,420 and that the variance for indirect materials cost was $3,828 unfavorable. During that month, the company worked 11,600 machine-hours. Budgeted activity for the month had been 11,300 machine-hours.

The cost formula per machine-hour for indirect materials cost must have been closest to:

Select one:

a. $2.18

b. $2.12

c. $2.78

d. $2.49

e. $2.85