Assuming the 5.75% is an annual interest rate and the investment lasts 240 months (20 years):
1. Simple Interest
Formula:
- Principal = RM60,000
- Annual rate = 5.75% = 0.0575
- Time = 20 years
Interest earned:
Final amount:
- RM129,000
ROI:
2. Compound Interest (Compounded Annually)
Formula:
Interest earned:
- RM123,435.99
ROI:
Summary
| Method | Interest Earned | Final Amount | ROI |
|---|---|---|---|
| Simple Interest | RM69,000.00 | RM129,000.00 | 115.00% |
| Compound (Annual) | RM123,435.99 | RM183,435.99 | 205.73% |
If your investment compounds monthly (which is common for many investments), the result is higher:
- Monthly rate = 5.75% ÷ 12 = 0.47917%
-
Final amount:
- Interest earned: RM128,807.08
- ROI: 214.68%






















