Short, practical guides to the finance concepts founders and freelancers actually hit in the wild — no jargon, no fluff. Every guide pairs with a free calculator so you can run your own numbers as you read.
They measure the same profit against different bases — and confusing them means every sale earns less than you think. Here's how to keep them straight.
Read the guide → PlanningThe sales volume where revenue finally covers every cost. Learn the formula, the role of contribution margin, and how to read your margin of safety.
Read the guide → StartupsGross vs net burn, the runway formula, and why a single growth assumption can swing your "months left" by a year. The number every founder should know cold.
Read the guide → FreelancingWhy dividing your old salary by 2,080 hours leaves money on the table — and the formula that accounts for overhead, taxes, profit, and unbillable time.
Read the guide →One short email per release — a new guide or a new calculator.
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