Practical guides

Clear answers.
Useful context.

Short, careful explanations that help you understand the answer—not just calculate it.

Calculators6 min read

How to Calculate Percentages Without Guesswork

Learn the three percentage formulas that solve most everyday questions, with clear examples for discounts, changes and comparisons.

Finance7 min read

Understand net prices, VAT amounts and gross totals, including the correct way to add or remove VAT from a price.

Finance7 min read

See how compounding, time, contribution frequency and fees change long-term savings growth with a practical example.