Answer:
$21,140
Explanation:
The computation of the total inventory cost is shown below:
= Acquired cost + Sales staff salaries + transportation-in costs by train + online advertising costs + shipping insurance costs + used panel restoration costs + lawn care costs
= $12,400 + $4,900 + $620 + $280 + $390 + $1,400 + $1,150
= $21,140
All those costs which are related to the inventory cost are to be recognized.