To get the break-even point, the Total Cost must equal to the Total Revenue or Profit. The Total Cost is the sum of Fixed Costs and Incremental Costs. Fixed costs are depreciation, advertising and insurance which is equal to $5,871 per month. Incremental Costs are weed and feed materials, direct labor, and fuel which is equal to $32 per lawn. The Marginal Revenue is equal to $89 per lawn. Letting āNā to be the break-even point in number of lawns, the break-even equation becomes: $5,871 + $32N = $89N. Then calculating N, the break-even number of lawns is equal to 103.