Rule of 70: Estimate Doubling Time Easily and Accurately
Rule of 70 is a quick mental shortcut: years to double ≈ 70 ÷ growth rate (%). Use it to estimate…
Risk management plan: How to write one (template + examples)
Every successful project or business faces uncertainty. That uncertainty, whether it’s financial, operational, or regulatory, creates risk. The best way to…
Dollar Cost Averaging Calculator
DCA Calculator — Lump-Sum vs Monthly DCA DCA Calculator — Lump-Sum vs Monthly DCA Lump-sum amount (USD) If you have a…
The Intelligent Investor: Key Lessons, Modern Applications, and How to Use Graham’s Ideas Today
The Intelligent Investor is Benjamin Graham’s classic on value investing and risk-aware decision-making, and it still shapes how millions think about…
Margin of Safety: What It Means, How to Calculate It & How to Use It
Margin of safety is the buffer you build into your valuation so that even if you get your assumptions wrong, you…
Expected value: Definition, formula & investing examples
Expected value tells you the long-run average you’d expect if you repeated a risky decision many times. For investments, expected value…
Royalties: How They Work, Types, and Investment Opportunities
Royalties are payments made to the owner of an asset, such as music, books, patents, or natural resources, when others use…
Future Value: Formula, Examples, Excel & Calculator
Money today doesn’t stay the same tomorrow. Future value (FV) is the concept that shows how much a sum of money…
Retirement Calculator: How Much Do You Actually Need to Save?
Current Age: Retirement Age: Current Savings ($): Annual Contribution ($): Return Rate (%): Inflation Rate (%): Retirement Spending Needed per Year…
