Final answer:
The fixed overhead over or under absorbed can be calculated by finding the difference between the actual labor hours used and the planned labor hours, and multiplying it by the fixed overhead rate.
Step-by-step explanation:
The fixed overhead over or under absorbed can be calculated by finding the difference between the actual labor hours used and the planned labor hours, and multiplying it by the fixed overhead rate. In this case, the fixed overhead rate is calculated by dividing the planned fixed overhead costs by the planned labor hours.
To find the fixed overhead over or under absorbed, we can use the following equation:
Fixed Overhead Over/(Under) Absorbed = (Actual Labor Hours - Planned Labor Hours) x Fixed Overhead Rate
Substituting the values from the question:
Fixed Overhead Over/(Under) Absorbed = (125,000 - 120,000) x ($420,000 / 120,000)
Fixed Overhead Over/(Under) Absorbed = 5,000 x ($420,000 / 120,000)
Fixed Overhead Over/(Under) Absorbed = 5,000 x $3.50
Fixed Overhead Over/(Under) Absorbed = $17,500