Please explain how to get the correct answer!

Irene Manufacturing uses a predetermined overhead allocation rate based on direct labor cost. At the beginning of the year, the company estimated total manufacturing overhead costs at $1,030,000 and total direct labor costs at $820,000.

In June, Job 711 was completed. The details of Job 711 are shown below.

Direct materials cost	$20,000
Direct labor cost	$13,000
Direct labor hours	500 hours
Units of product produced	400 units

How much was the cost per unit of finished product? (Round any percentages to two decimal places and your final answer to the nearest cent.)

A. $90.82

B. $123.32

C. $82.50

D. $108.37