Answer:
$1,464,000
Step-by-step explanation:
The computation of the depletion expense is shown below:
Purchase price plus additional cost = $5,640,000
Extracted tons during four year period = 940,000 tons
Current year tons extracted = 244,000 tons
So,
Depletion expense = Purchase price plus additional cost ÷ extracted tons during four year period × current year tons extracted
= $5,640,000 ÷ 940,000 tons × 244,000 tons
= $1,464,000