Buckson Framing's cost formula for its supplies cost is $1,350 per month plus $18 per frame. For the month of June, the company planned for activity of 716 frames, but the actual level of activity was 713 frames. The actual supplies cost for the month was $14,820. The supplies cost in the flexible budget for June would be closest to.
a. $14,820b. $14,184c. $14,238d. $14,178

c. $ 14,238

Explanation:

Computation of costs in the flexible budget

Planned activity                                                           716 units

Budgeted cost per unit                                              $ 18 per frame

Total planned variable cost - 716 units * $ 18            $ 12,888

Fixed monthly cost                                                      $   1,350        

Total supplies cost in  flexible budget for June      $ 14,238  

The other information regarding the actual costs and actual production are not required for determining the budgted cost for supplies.