December:2020:+34,277.8 yuanAugust: -5766.84 yuan
Another solutionDecember:This year's profit:-17,640.13 yuan
September: 11,228.38 yuanJuly: -356.24 yuanDecember:
Strategy guide
12-13
Strategy guide 12-13
Strategy guide 12-13
Strategy guide 12-13
Strategy guide
12-13
Strategy guide
12-13