Rule of 72
Taip pat žinomas kaip: Doubling Time Rule
t \approx \frac{72}{r}
t ≈ 72 / rKą skaičiuoja
A quick mental math shortcut to estimate how many years it takes for an investment to double at a given annual rate of return.
kintamieji
| Simbolis | Vardas | Aprašymas |
|---|---|---|
| t | Doubling Time | Approximate years for an investment to double |
| r | Annual Rate | Annual interest rate as a percentage (not decimal) |
Veikti pavyzdžiai
1
t = 72 / 8 = 9 yearsRezultatas: ~9 years
Išbandykite skaičiuotuvą
Susijusios formulės
#mental math#investing#doubling