Hello, here is the question. Thank you

Prior to making its annual year end adjusting entry for Bad Debt Expense (Doubtful Accounts Expense) at December 31, 2018, Prevalent Company had an account receivable balance of $400,000 and an allowance for bad debts (allowance for doubtful accounts) of $1,000. During 2018, Prevalent had recorded $800,000 in credit sales. Based on its past experience, the firm estimates that its receivable loss to be 1 percent of credit sales.

1. What entry would Prevalent make if it determined using the balance sheet method for estimating bad debts that the allowance should be $7,000?
2. What would the net realizable receivable balance be in A?
3. What would the adjusting entry be for bad debts if he firm used instead the percentage of sales method?
4. What would the net realizable value be at year end using the percent of sales method calculated in C?