Exercise 9-3 Determining ratio effects of write-offs (LO9-2) Echo Corporation had the following balances immediately prior to writing off a $100 uncollectible account: Current assets $ 30,000 Accounts receivable 3,300 Allowance for credit losses 300 Current liabilities 10,000 Required: Calculate the following amounts or ratios and determine the relationship between the amount or ratio before the write-off (x) with the amount or ratio after the write-off (y)