Please calculate how much difference there is between simple interest operation and compound interest operation and check the effect of compound interest. ■ For those who want to calculate easily - All you have to do is enter the principal before the reserve, the monthly reserve amount, the annual interest rate, and the investment period. ■ For those who want to calculate in more detail - You can select the compound interest method(*1) and the taxation method(*2) for calculation. *1: Year, half year, quarter, month, simple interest *2: Tax exemption, lump sum tax at maturity, compound interest tax ■ Disclaimer - The calculation results do not guarantee the return on investment. Please use it as a guide only. - There is a part where the tax is calculated simply. Please consult your tax accountant for details. If you have any comments, requests, or problems, please give us a review.