December:2020:+34,277.8 yuanThis month's profit: +6912.15 yuan
August: -5766.84 yuanAnother solutionMay: -4260.08 yuan
2021:+23,432.42 yuanMay: -4260.08 yuanJuly: -356.24 yuan
Strategy guide 12-14
Strategy guide
12-14