The following information relates to C Lid for the year ended 30 June 2021. Sales revenue $550 000 Opening balance of trade receivables $100 000 Closing balance of trade receivables $132 000 - Doubtful debts expense $8 000 Increase in allowance for doubtful debts $6 000 Bad debts are written off against the allowance for doubtful debts. What is the amount of receipts from customers during the year ended 30 June 2021? $514,000 $479 000 $420 000 $485 000