Answer:
Total fixed cost element = $90000
Explanation:
To calculate the fixed maintenance cost, first we will use the high-low method to calculate the element of average variable maintenance cost per machine hour in the average total maintenance cost.
The value of highest activity = 24000 * 9.75 = $234000
The value of lowest activity = 20000 * 10.5 = $210000
Average VC per MH = (234000 - 210000) / (24000 - 20000)
Average VC per MH = $6 per machine hour
Total Average variable cost (24000 MH) = 6 * 24000 = $144000
Total fixed cost element = 234000 - 144000 = $90000