What is the dollar effect of the year-end bad debt adjustment on the before-tax income?

Tamarisk Corporation operates in an industry that has a high rate of bad debts. Before any year-end adjustments, the balance in Tamarisk's Accounts Receivable account was $ 603,800 and Allowance for Doubtful Accounts had a credit balance of $ 43,550. The year-end balance reported in the balance sheet for Allowance for Doubtful Accounts will be based on the aging schedule shown below. Probability of Collection Days Account Outstanding Amount Less than 16 days $318,300 0.96 Between 16 and 30 days 115,700 0.90 Between 31 and 45 days 89,200 0.86 Between 46 and 60 days 43,400 0.78 Between 61 and 75 days 21,200 0.50 Over 75 days (to be written off) 16,000 0.00