Could you please help me solve the accounting below? Please see the attached file. Please help to do it step-by-step with all the workings and solutions. Thank you very much!

Casilda Company uses the aging approach to estimate bad debt expense. The ending balance of each account receivable is aged on the basis of three time periods as follows: (1) not yet due, $17,200, (2) up to 120 days past due, $6,500, and (3) more than 120 days past due, $3,700. Experience has shown that for each age group, the average loss rate on the amount of the receivables at year-end due to uncollectibility is (1) 1 percent, (2) 14 percent, and (3) 34 percent, respectively. At the end of the current year, the Allowance for Doubtful Accounts balance is $900 (credit) before the end-of-period adjusting entry is made.

Required:

What amount should be recorded as Bad Debt Expense for the current year? (Enter your answers as a whole percentage (i.e., 0.12 should be entered as 12).)

EstimatedEstimated Percentage Uncollectible Aged Accounts Receivable Amount Uncollectible Not yet due Up to 120 days past due Over 120 days past due Estimated balance in allowance for doubtful accounts Current balance in allowance for doubtful accounts Bad debt expense for the year