Since July, I have invested 2000 yuan every month, and how much can I earn by 65438+February! Rough calculation:
July (starting from July 10): 1.05X0, 2X30=6.30 yuan.
August:1.05x0.4x1.0530 =12.6 yuan.
September: 1.05X0.6X30= 18.9 yuan.
65438+ 10 month: 1.05X0.8X30=25.2 yuan.
165438+ 10 month:1.05x1.0x30 = 31.05 yuan.
65438+February1.05x1.2x30 = 36.72 yuan.
Total: 130.77
This is a rough figure.