Yearly Breakdown
Years Contribution Interest Earned Future Value (16.25%)
1 ₦260,000.00 ₦22,210.31 ₦282,210.31
2 ₦500,000.00 ₦90,350.99 ₦590,350.99
3 ₦740,000.00 ₦212,467.51 ₦952,467.51
If you save ₦20,000 every month for 3 years at an annual return of 16.25%, here is the rough projection assuming the interest is compounded monthly and you contribute at the end of each month:

Where:

monthly
months
Estimated Result
Total amount contributed: ₦720,000
Estimated value after 3 years: about ₦920,000 – ₦930,000
Estimated profit/interest earned: about ₦200,000 – ₦210,000
This assumes:
The 16.25% rate remains constant for all 3 years
Interest compounds monthly
You never miss a monthly contribution