Answer:
$0.3 per machine hour
Explanation:
The computation of the variable maintenance cost per machine hour using the high low method is shown below:
Variable cost per machine hour = (High maintenance cost - low maintenance cost) ÷ (High machine hours - low machine hours)
= ($9,000 - $7,200) ÷ (20,000 machine hours - 14,000 machine hours)
= $1,800 ÷ 6,000 machine hours
= $0.3 per machine hour
