A stronger workbook-style pack for ROI, break-even thinking, contribution per unit, and practical commercial comparisons where volume and return both matter.
Use this pack when a commercial decision needs both a return view and an operating-volume view. ROI and break-even complement each other rather than replacing each other.
ROI helps compare attractiveness. Break-even tells you how much output is needed before profit begins. Both are stronger when their underlying assumptions are written clearly.
A campaign or equipment purchase can be tested by estimating expected gain, defining the cost base, and then checking how many units or months of contribution are needed to recover the fixed outlay.
Calculate return on investment from the starting cost and final value you enter, with the result shown as a simple percentage return.
Use the Break-Even Units Calculator to work out break-even units from values you control yourself, without baked-in policy assumptions.
Work out gross profit, profit margin, and markup from the selling price and cost you enter.
Use the Markup Calculator to work out markup from values you control yourself, without baked-in policy assumptions.
Use the Discount Calculator to work out discount from values you control yourself, without baked-in policy assumptions.