Happy Lawn Company started a lawn services business on January 1, 20X1 (so all account balances were zero on January 1, 20X1). It sends invoices to its customers for lawn maintenance services at the end of each month, and expects the customer to pay within 30 days. All of these sales were made on credit. During 20X1, cash collected from its customers totaled $750,000 for services rendered during the year. At the end of 20X1, the Accounts Receivable for Happy Lawn had a balance of $60,000. After all write-offs but before the year-end adjusting entry, the Allowance for Doubtful Accounts had a debit balance of $4,000. Assume that Happy Lawn uses the percentage of credit sales method (to directly calculate the bad debt expense) instead of the aging method, and it is estimated that it will not collect 1% of the total credit sales.

Required:
Under this assumption what is Happy Lawn's 20X1 Bad Debt Expense?