计数单元格公式为：=COUNTIF(C2:C9,"退货")
其中C2:C9为投递结果所在区域
妥投数量=COUNTIF(C2:C9,"妥投")妥投率=COUNTIF(C2:C9,"妥投")/COUNTA(C2:C9)退货数量=COUNTIF(C2:C9,"退货")
