This break-even analysis smart asset tracking scope covers a US recurring monitoring service with hardware-linked setup fees, subscription revenue, usage fees, device procurement, cellular plans, cloud hosting, payroll, marketing, sales, and support The launch-period model uses $855k in fixed monthly costs, 20% variable expenses, and an 80% contribution margin contribution margin means the share of revenue left after variable costs It excludes tax advice, lender approval, depreciation, financing costs, and guaranteed profit claims