毛利率2017 =(39791.89-29014)/39791.89 * 100% = 27.09%。
毛利率2018 =(43335.32-33360.26)/43335.32 * 100% = 23.02%。
毛利率2019 =(31283.51-24352.13)/31283.55438+0 * 100% = 22.16%。
凈利率=凈利潤/營業收入
2017凈利率= 4165.83/39791.89 * 100% = 10.47%。
2018凈利率= 5159.15/43335.32 * 100% = 11.91%。
2019凈利率= 31283.51/2945.07 * 100% = 9.41%。利潤率計算知識