For example, when you invest 10 million won in principal and 1 million won per month in stocks such as Samsung Electronics and SK Hynix in an accrual method for 10 years, it is calculated how much the amount will increase with compound interest over 10 years. And additionally, in the existing compound interest calculator, the user inputs the compound interest rate, but this app automatically calculates the interest rate when entering the target amount. If you are trying to make 1 billion in 5