The simple wealth equation
Three knobs. Master all three. Wealth shows up.
The idea
All of personal finance hides in one tiny formula: what you make minus what you spend equals what you keep. That gap — your savings rate — is what you invest and grow. Earning more helps, but if spending rises just as fast, the gap stays zero. Widen the gap and invest it, and wealth becomes almost automatic. 🧮
Words to know
- Savings rate
- The share of your income you save and invest instead of spending — the most powerful number in personal finance.
- Income
- The money you make.
- Expenses
- The money you spend.
- Financial independence (FI)
- Having enough invested that work becomes optional.
- Lifestyle inflation
- Spending more as you earn more, which keeps your savings gap from growing.
Try it — no account needed
Two friends both want to be rich one day. Friend A earns $1,000/month and saves $200. Friend B earns $5,000/month and saves $200. Same savings. Who's on a better path?
In the full lesson
- 1Make the call
Vine has 107 lessons like this one, each written three ways so a 7-year-old and a 17-year-old both get a version that fits.
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