During the current year, Giatras Electronics recorded credit sales of $$710,000.$ Based on prior experience, it estimates a $3\mathrm{.}0$ percent bad debt rate on credit sales

Required:

$1.$ Prepare journal entries for each of the following transactions.

a$.$ On October $28$ of the current year, an account receivable for $$2,100$ from a prior year was determined to be uncollectible and was written off.

b$.$ At year$-$end, the appropriate bad debt expense adjustment was recorded for the current year.

$2.$ Complete the following table, indicating the amount and effect for each transaction.