Final answer:
The ending balance in the Allowance for Bad Debts account after adjusting entries and a 5% estimate of bad debts would be $2,900.
Step-by-step explanation:
To calculate the ending balance in the Allowance for Bad Debts account using an income statement approach at a 5% estimate, you first determine the amount of bad debts expense by taking 5% of the net credit sales, which in this case is 5% of $45,000, equalling $2,250. Next, you would adjust for the existing credit balance in the Allowance for Bad Debts account. Therefore, you add the current credit balance of $650 to the bad debts expense of $2,250, resulting in a new credit balance of $2,900 in the Allowance for Bad Debts account.