Answer:
$398,040
Explanation:
The computation of the balance in Retained Earnings at September 30, 2022 is shown below:
= Retained earnings balance on September 1, 2022 + revenues generated - expenses incurred - dividend paid
= $524,520 + $74,400 - $44,640 - $7,440
= $398,040
The purchase of equipment is not consider for calculating the ending retained earnings balance.