This tree trimming break-even analysis uses a monthly model for a US service launch: $26,850 in fixed overhead, 26% variable expenses, and a 74% contribution margin It shows the revenue needed to cover wages, yard rent, insurance, software, fuel, permits, and job labor before taxes, debt structure, depreciation, and legal advice It also flags seasonality risk, since the model reaches break-even in Month 33, not in the early ramp-up