Explanation:
The journal entries are as follows
1. Bad debt expense A/c Dr $4,674 ($779,000 × 0.60%)
To Allowance for doubtful debts $4,674
(Being bad debt expense is recorded)
2. Allowance for doubtful debts Dr $390
To Account receivable $390
(Being the written off amount is recorded)
3. Account receivable $390
To Allowance for doubtful debts $390
4. Cash Dr $390
To Account receivable $390
(Being the cash received is recorded)