20'装26CBM,26/0.164=160箱采购成本=160*60*7=67200报关报检核销公司综合=3360退税=67200*1.17*0.15=8615.38FOB*0.1=FOB-67200+8615.38-3360-FOB*0.01这个公式算出FOB总价,然后除以总共件数和汇率,得出FOB单价CFR*0.1=CFR-67200+8615.38-3360-(1250*8)-CFR*0.01得出CFR总价,同理得出单价