If you invest 1000 yuan every month to make a fixed investment, how much profit can you make after 10 years (calculated by 10% annual interest rate)? How to calculate? The more detailed the better, the better step by step. Monthly 1000 yuan, annual1000 *12 =12000 yuan, annual interest rate 10%, one year later12000 * (1. Two years later,13200 * (1+10%) =14520, and so on. Ten years later, it will be the tenth power of12000 * (1+10%) = 30.