Finance guides for beginners
Learn one concept, follow a worked example, then try the linked calculator. These guides introduce the methods and explain where a simple calculation stops being enough.
Compound interest explained: formula and examples
Understand compound interest with a worked savings example, monthly contributions, and the difference between an assumption and a forecast.
Explore →What is EBITDA? Meaning, formula and a worked example
Learn what EBITDA measures, calculate it from net income, and understand why EBITDA is not cash flow or a substitute for profit.
Explore →Enterprise value vs equity value: the difference explained
Compare enterprise value and equity value with a clear bridge, a worked example and the right earnings measure for each valuation.
Explore →How to calculate profit margin: gross, operating and net
Calculate profit margin, distinguish gross and net profit, and avoid confusing margin with markup using original worked examples.
Explore →P/E ratio explained: formula, examples and limitations
Understand price-to-earnings ratios, calculate a worked example, and compare trailing and forward P/E without treating a low ratio as a buy signal.
Explore →Browse all seven calculators or continue with interactive lessons and quizzes.