Saddle Inc has two types of handbags standard and custom The
Solution
(a) Overhead rate using the traditional (plant wide) approach
Overhead rate = Total estimated overhead costs / Direct labor costs
= $297,000 / [ $59,000 + 119,000 ]
= $297,000 / 178,000
= 166.85% of Direct Labor Cost
Predetermined Overhead Rate = 166.85% of Direct Labor Cost
(b) Overhead rates using the activity-based costing approach
Machining Activity = $79.05 per machine hours
Machine setup = $190.94 per set up hours
Machining Activity
= Overhead cost allocated to the machining activity cost pool / Total Machine Hours
= $200,000 / [ 1350 Machine hours + 1180 Machine Hours ]
= $200,000 / 2530 Machine Hours
= $79.05 per machine hours
Machine setup
= Overhead cost allocated to the machining activity cost pool / Total Set up hours
= $97,000 / [ 98 set up hours + 410 set up hours ]
= $97,000 / 508 Set up hours
= $190.94 per set up hours
(c) Difference in allocation between the two approaches
Traditional costing
Standard
$98,442
Custom
$198,552
Activity-based costing
Standard
$125,430
Custom
$171,564
Traditional costing
Standard
Custom
$59,000 x 166.85%
$98,442
-
$119,000 x 166.85%
-
$198,552
TOTAL
$98,442
$198,552
Activity-based costing
Standard
Custom
Machining:
1350 Machine hours x $79.05
$106,718
1180 Machine hours x $79.05
$93,279
Machine setup:
98 Set up hours x $190.94
$18,712
410 Set up hours x $190.94
$78,285
TOTAL
$125,430
$171,564
| Traditional costing | |
| Standard | $98,442 |
| Custom | $198,552 |
| Activity-based costing | |
| Standard | $125,430 |
| Custom | $171,564 |


