Course TCC – Understanding P & Ls AM/DM Mandatory Progression TCC Supervisor 0 out of 10 steps completed0% 5 Lessons Lessons Expand All | Collapse All Income 1 Topic Understanding Income Cost of Sales 1 Topic Understanding the cost of sales GP Margin 1 Topic Understanding the gross profit margin Operating Expenses 1 Topic Understanding expenses Profit & Loss 1 Topic Understanding profit & loss