Dennis Jones, an old college friend, contacted you last week. Dennis owns several car washes, and he believes that financial statement fraud may be occurring. $($He pays each car wash manager a bonus if a certain level of profits is earned and is worried that some managers are overstating profits to earn a higher bonus.$)$ Dennis is coming over today to see whether you can help him determine if his suspicions are valid. He is bringing along the financial statements for each car wash $($income statements, balance sheets, and cash flow statements$)$ for the last five years.

What kind of financial statement analysis could you perform to help Dennis detect possible fraud?