Vulcan Service Co. experienced the following transactions for 2016, its first year of operations: 1. Provided $72,000 of services on account. 2. Collected $43,200 cash from accounts receivable 3. Paid $28,000 of salaries expense for the year. 4. Adjusted the accounts using the following information from an accounts receivable aging schedule: Allowance Balance Percent Likely to Be Uncollectible 01 05 .10 .30 .50 Number of Days Past Due Current 0-30 31-60 61-90 Over 90 days Amount $21,312 1,440 2,016 1,728 2,304 (Round your intermediate calculations and final answers to nearest whole dollar.)