अपूर्ण लेखांकन अभिलेखों (Incomplete records) से तैयार की गई वित्तीय स्थिति के विवरण को आमतौर पर किस नाम से जाना जाता है?

Jai has not kept complete records of his business transactions. He has gathered the following information concerning trade receivables: - Total receipts from customers (cash and credit): $34,560 - Trade receivables balance at 31 July 20X4: $16,800 - Trade receivables balance at 31 July 20X5: $17,450 - Credit sales: $21,600 Jai makes 40% of his total sales for cash. How much prompt payment discount did Jai give his credit customers during the year ended 31 July 20X5?