Coltrane, CPA, is auditing Jang Wholesaling Company's financial statements and is about to perform substantive audit procedures on Jang's trade accounts payable balances. After obtaining an understanding of Jang's internal control for accounts payable, Coltrane assessed control risk below the maximum. Coltrane requested and received from Jang a schedule of the trade accounts payable prepared using the trade accounts payable subsidiary ledger (voucher register).

Required: Describe the substantive audit procedures Coltrane should apply to Jang's trade accounts payable balances. Do not include procedures that would be applied only in the audit of related-party payables, amounts withheld from employees, and accrued expenses such as pensions and interest.