Call systems company, a telephone service and supply company, has just completed its fourth year of operations. the direct write-off method of recording bad debt expense has been used during the entire period. because of substantial increases in sales volume and the amount of uncollectible accounts, the company is considering changing to the allowance method. information is requested as to the effect that an annual provision of 1% of sales would have had on the amount of bad debt expense reported for each of the past four years. it is also considered desirable to know what the balance of allowance for doubtful accounts would have been at the end of each year. the following data have been obtained from the accounts: yearsalesuncollectible accounts written offyears of origin of accounts receivablewritten off as uncollectible(1st)(2nd)(3rd)(4th)1s t $ 900,000 $ 4,500 $4,500 2nd 1,250,000 9,600 3,000 $6,600 3rd 1,500,000 12,800 1,000 3,700 $8,100 4th 2,200,000 16,550 1,500 4,300 $10,750required: 1. assemble the desired data to prepare a schedule of bad debt expense. enter decreases as negative numbers using a minus sign.. experience during the first four years of operations indicated that the receivables were either collected within two years or had to be written off as uncollectible. does the estimate of 1% of sales appear to be reasonably close to the actual experience with uncollectible accounts originating during the first two years? call systems companyschedule of bad debt expenseyearexpense actually reportedexpense based on estimateincrease (decrease) in amount of expensebalance of allowance account, end of year1st2nd3rd4th