COMPOUND INTEREST ----------------- Principal (P) = $1000 e = Euler's number for GROWTH EXPANSION = 2.718241... Interest Rate (I) = DEPENDING ON THE RULE OF 72 *RULE OF 72 -> 72 divided by number of years to double Principal = Interest rate eg.: 72 / 7 years = 10.3% Time (T) = 2 YEARS (72 / 2 YEARS = 36% INTEREST RATE) FORMULAE TO DOUBLE $1000 IN 2 YEARS -> P*e^(I*T) = $2056.50 *ONE CAN SHORTEN THE NUMBER OF YEARS TO AMASS WEALTH FASTER* **REALLY GOOD FOR SAVINGS AND INVESTMENTS**