Answer:
$370,556
Explanation:
Current costs:
since the total number of hours was larger, 10,000, then we must adjust the budget:
total variable cost per hour = $320,000 / 9,000 hours = $35.556 per hour
since the factory operated for 10,000 hours, then total costs = $335,000 (total costs for 9,000 hours) + (variable costs = $35.55 per hour x 1,000 hours) = $335,000 + $35,556 = $370,556