February: -5741.46 yuanSeptember: 11,228.38 yuanMay: -4260.08 yuan
Another solutionThis year's profit:-17,640.13 yuanRunze technology retreats to take profit and sell.
April: -985.06 yuanSeptember: 11,228.38 yuanJanuary:-13,296.2 yuan
Strategy guide 12-13