Figure: Short-Run Monopoly Price and cost MC ATC N / AVC G P MR Demand Q RSTU Quantity (per period) Reference: Ret 13-1 (Figure: Short-Run Monopoly) Look at the figure Short-Run Monopoly. If the firm is trying to maximize its profit, the per-unit profit is: O The difference between O and where ATC at output R. O The difference between N and where AVC at output R. ON-P . O The difference between N and where ATC at output R