Facial Cosmetics provides plastic surgery primarily to hide the appearance of unwanted scars and other blemishes. During 2021, the company provides services of $410,000 on account. Of this amount, $60,000 remains uncollected at the end of the year. An aging schedule as of December 31, 2021, is provided below.

Age Group Amount Receivable Estimated Percent Uncollectible
Not yet due $40,000 3%
0-30 days past due 11,000 4%
31-60 days past due 8,000 11%
More than 60 days past due 1,000 25%
Total $60,000

Required:
1. Calculate the allowance for uncollectible accounts.
2. Record the December 31, 2018, adjustment, assuming the balance of Allowance for Uncollectible Accounts before adjustment is $400 (debit).
3. On April 3, 2019, a customer's account balance of $500 is written off as uncollectible. Record the write-off.
4. On July 17, 2019, the customer whose account was written off in Requirement 3 unexpectedly pays $100 of the amount but does not expect to pay any additional amounts. Record the cash collection.