Answer:
$241,500 (Understated)
Step-by-step explanation:
Calculation for how much should Sheridan's retained earnings be retroactively adjusted at January 1, 2022
Retained earnings = $121,000 (Understated) + $200,000 (Understated) - $79,500 (Overstated)
Retained earnings = $241,500 (Understated)
Therefore by how much should Sheridan's retained earnings be retroactively adjusted at January 1, 2022 will be $241,500 (Understated)