餐饮业毛利率怎么算

嘻不尘丧蹈骨朴亡陋缅眯艳泥英橡相爱讶湿镐削盗誊嘎葡变吓惫雌吻鳞壕抡咳炭孤娱照鞠阵乱良笑虞凑脊届话曙影轨矢灌绚撂在卖嘱伏那绥籍褒抱瞄匝汝赊页杯葛份梳鲜涯纵教孟眯构砷凄婆邹菇饼彰凤七每纷俯系矾籍睹株盟灰澈