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Notes with numbers in them.

Practical guides on software costs, ad metrics, and SaaS economics — companions to the free calculators. Every claim comes with the formula behind it.

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July 3, 2026 · 2 min read

Margin vs. Markup: The Difference That Quietly Eats Profit

Margin and markup use the same two numbers and give different answers. The formulas, a conversion table, and the pricing mistake that costs businesses real money.

marginpricingbusiness

July 3, 2026 · 3 min read

How Much Does Software Development Cost in 2026?

Real 2026 cost ranges for MVPs, SaaS products, and custom software — agency vs. freelancer vs. solo senior engineer, with the factors that actually move the price.

software costsmvppricing

July 3, 2026 · 3 min read

Average CPM Rates in 2026: Benchmarks by Platform

What a good CPM looks like on Meta, Google, YouTube, LinkedIn, TikTok, and programmatic display in 2026 — and why comparing against the wrong benchmark wastes budget.

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