Answer:
$24,980
Explanation:
The formula to compute the average total cost is shown below:
Average total cost = Total cost ÷ quantity in units
$25 = Total cost ÷ 1,000 units
So, the total cost would be
= 1,000 units × $25
= $25,000
And, the marginal cost is $20
The marginal cost is the additional cost which arises from producing extra unit
Marginal cost = Total cost in 1,000 units - Total cost in 999 units
$20 = $25,000 - Total cost in 999 units
So, the total cost of 999 units would be
= $25,000 - $20
= $24,980