Posts in Finance
No articles found.
-
How Exchange Rates Work (and How to Convert Without Overpaying)
The rate you see online is the mid-market rate, not what your bank or card actually gives you. See the real markup, and how to convert money without overpaying.
July 4, 2026 -
How to Calculate VAT (Add or Remove Tax From Any Price)
The VAT add and remove formulas, a worked invoice example, a UK rate table, and the mistakes that throw off a tax return. Free calculator included.
July 4, 2026 -
How Mortgage Payments Are Calculated (With Formula)
See exactly how a mortgage payment is calculated: the amortization formula, a worked example, and a down payment comparison. Free calculator included.
July 3, 2026 -
How Much Should You Tip? A Country-by-Country Guide
Learn fair tipping percentages in the US, UK, Canada and Australia, how to split a bill correctly, and the double-tipping mistake to avoid. Free calculator included.
July 3, 2026 -
How to Calculate a Discount (Formula + Stacking Discounts)
The discount and sale price formulas, a worked example, why stacked discounts don't add up, and when a flat discount beats a percentage. Free calculator included.
July 3, 2026 -
How to Calculate Percentages: The 3 Formulas You Actually Need
Learn the three percentage formulas, a worked discount example, the reverse percentage trick, and why percentage points aren't the same as percent. Free calculator included.
July 2, 2026 -
How Compound Interest Works: The Math, the Examples, and Why Starting Early Beats Starting Big
Learn how compound interest works: the formula, a simple vs. compound comparison, and the early-vs-late starter table that makes the math undeniable. Free calculator included.
June 30, 2026