
When Should You Fire a Customer? Run the Numbers Before You Walk Away
Customer profit equals net revenue minus direct costs minus cost to serve — rank every account, reprice the tail, and release what will not pay.
#profitability
Analyze and improve business profitability with financial insights

Customer profit equals net revenue minus direct costs minus cost to serve — rank every account, reprice the tail, and release what will not pay.

A 12-seat shuttle van at $35 a seat breaks even near 27% load per run, but empties and deadhead push real routes to 40–60%. Track fees per airport.

BYD's H1 2026 profit fell 20.5% to RMB 12.3B on an RMB 8.3B FX-driven finance swing, while overseas revenue rose 34% to 52.6% of sales.

Hims & Hers grew Q2 2026 revenue 38% to $753M with 2.9M subscribers, but GLP-1 costs cut gross margin to 64% and a $47.5M legal charge drove an $86M loss.

NIO's Q2 2026 revenue rose 69% to RMB 32.1B and vehicle margin hit 18.5%, yet a RMB 528M GAAP loss sits beneath a RMB 26M non-GAAP profit. Here's why.

Activity-based costing traces overhead to setups, inspections, and orders, so each job carries its true cost and quotes stop subsidizing complex work.

US exotic rentals need roughly 60% utilization — about 18 days a month — to clear insurance, financing, and the $4,000–$6,000 a car loses in value monthly.

Billable utilization fell to 66.4%, a 19-year low — yet top firms run 70–80%. What each point is worth and how to recover it without burnout.

The high-low method splits a mixed cost using two periods — cost difference ÷ activity difference is the variable rate, and the remainder is fixed.

How to split a dermatology practice's books into medical, Mohs, cosmetic, retail, and pathology profit centers — with the chart-of-accounts structure, overhead allocation rules, denial and per-case metrics, and deferred-revenue treatment each one needs.

A 50% markup on an $8.00 cost yields a 33% margin, not 50% — the single most expensive arithmetic error in small-business pricing. This guide gives the formulas for cost-plus, value-based, and penetration pricing, worked examples, the markup-vs-margin correction, and how to A/B test a price before committing.

How small growers keep books that answer "which crop made money?" — Schedule F expense categories, why cash accounting fits a market garden, the March 1 / January 15 farmer estimated-tax rule, the farm optional method for Social Security credits, and per-enterprise cost allocation by bed-feet and labor hours.