Posts in Finance
No articles found.
-
How the Luhn Algorithm Validates a Credit Card Number
See the Luhn checksum that catches a mistyped credit card digit instantly, with a worked example, a test-number table and a live checker.
July 10, 2026 -
How to Convert Salary to Hourly Wage (With Worked Examples)
Convert an annual salary to an hourly wage or an hourly rate to yearly pay, step by step, with two worked examples and a free calculator.
July 10, 2026 -
How Much Do TikTokers Make From Sponsored Posts? Real Rate Bands
See what TikTok creators actually earn from brand deals, not the tiny Creator Rewards Program payout. Rate bands by engagement, worked examples, free calculator.
July 8, 2026 -
How to Calculate Hours Worked from a Time Card
The time card formula for total hours worked, how to handle unpaid breaks and overnight shifts, and how to convert minutes into decimal hours for payroll.
July 7, 2026 -
How to Calculate Fuel Cost for a Trip (MPG, L/100km or km/L)
The fuel cost formula for MPG, L/100km and km/L, a worked road trip example, and how to compare two cars' fuel economy in real dollars.
July 6, 2026 -
How to Calculate Unit Price (and Actually Spot the Cheaper Pack)
The unit price formula, a worked coffee-bag example comparing three sizes, and the common mistakes that make the bigger pack look cheaper than it is.
July 6, 2026 -
How IBAN Validation Works (and How to Catch a Typo Before You Wire Money)
See how the MOD-97 checksum in an IBAN catches a mistyped digit before a wire transfer, with a real worked example and a country length table.
July 5, 2026 -
How Much Do YouTubers Actually Make? RPM, CPM, and Real Numbers by Niche
See how YouTube ad income really works: RPM vs CPM, real earnings ranges by niche, and a worked example from 1,000 to 100,000 daily views. Free calculator included.
July 5, 2026