Lastly, the allowance for doubtful accounts looks pretty low.A/R goes up, but the allowance goes down?I need a separate audit documentation (C-3) addressing the reasonableness of Apollo's Allowance for Doubtful Accounts.You can specifically identify troubled accounts, look at subsequent cash collections, look at what Apollo's competitors do, look at what Apollo has done in the past (bad debt expense as a % of sales, allowance for doubtful accounts as a % of total receivables) to develop your estimate of what should be in the allowance.Also consider current and previous A/R Turnover and Days' Sales in A/R ratios.

This is from the Apollo Shoes Auditing Project Pg. 81