Answer and Explanation:
The computation is shown below
Depletion expense per cubic feet would be
= Total cost ÷ Total cubic feet
= $15.3 million ÷ 8 million
= $1.9125 per cubic feet
Now
Depletion for year 1
= Number of cubic feet extracted × Depletion per cubic feet
= 800,000 × $1.9125
= $1,530,000
And, for the depletion for year 2
= 1,600,000 × $1.9125
= $3,060,000