Inflation Impact Analysis
An annual inflation rate of 3.0% reduces the real purchasing power of your money:
Compound Interest Formulas
The mathematical operation to compute compound interest is derived as:
Where:
- A = Final maturity amount
- P = Principal amount deposited
- r = Nominal annual interest rate (Annual rate / 100)
- n = Compounding frequency per year (e.g. 12 for monthly, 4 for quarterly)
- t = Number of years
The accumulated interest earned is calculated as: **Compound Interest (CI) = A - P**.
Annual Capital Growth Ledger
| Year | Opening Balance | Interest Added | Closing Balance (Nominal) | Real Value (Inflation-Adjusted) |
|---|
Frequently Asked Questions
The Rule of 72 is a quick mental formula to estimate how long it takes to double your capital under compounding interest. Divide 72 by your annual interest rate to find the approximate number of years (e.g., at an 8% return rate, it takes 72 / 8 = 9 years to double your money).
Simple interest is calculated only on the initial principal sum, meaning you earn a flat, linear interest amount every period. Compound interest computes returns on both the principal and all accumulated interest from prior periods, enabling exponential wealth growth over time.