Answer:
$5,220,128.80
Step-by-step explanation:
For computing the depreciation expense for 2018 under the units of production method, first we have to determine the per unit which is shown below
= (Original cost - residual value) ÷ (estimated production hours)
= ($40,500,000 - $44,000) ÷ (31,000 hours)
= ($40,456,000) ÷ (31,000 hours)
= $1,305 0.322
Now for the year 2018, it would be
= Production hours in 2018 × depreciation per unit
= 4,000 hours × $1,305 0.322
= $5,220,128.80