Answer:
The adjusting journal entries to record estimated returns will include:
Debit to Sales for $9,000
Explanation:
As the returns account is the contra sales account and it is adjusted with the sales value. Due to credit nature of sales the adjusting entry for a contra account will be debited to make the sales value net of returns.
Sales = $900,000
Estimated return = 1% of Sales
Returns Value = $900,000 x 1%
Returns Value = $9,000