PA1. LO 7.2 On June 30, Oscar Inc.'s bookkeeper is preparing to close the books for the month. The accounts receivable control total shows a balance of $2,820.76, but the accounts receivable subsidiary ledger shows total account balances of $2,220.76. The accounts receivable subsidiary ledger is shown here. Can you help find the mistake? ACCOUNTS RECEIVABLE SUBSIDIARY LEDGER Account: Amazoon AR No. 246 Date Item Ref. Debit Credit Balance Debit 1,200.50 0.00 Apr. 5 Beginning Balance Payment CR 175 1200.50 Account: Cadberry AR No. 357 Balance Date Item Ref. Debit Credit Beginning Balance Invoice 210 Debit 877.30 1.177.30 Apr. 8 SJ 123 300 Account: Hewlit Pickard AR No. 468 Balance Date Item Debit Credit Debit 172299 Apr. 28 Beginning Balance Invoice 211 Sj 123 100 272.99 Account: Neatflicks inc. AR No. 579 Balance Date Ref. Debit Credit Debit Item Beginning Balance Payment Invoice 212 Apr. 6 Apr. 22 CR 175 123 500 300 1.570.47 1,070.47 770.47