Answer & Explanation:
1. Predetermined Overhead allocation
= Estimated manufacturing Overhead / Estimated machine hours
= 624,000/520,000
= $1.2 per machine hour
2. Overhead allocated to Basic Model
= 1.2 * 270,000 machine hours
= $324,000
Overhead allocated to Professional Model
= 1.2 * 250,000
= $300,000