如果不含稅銷(xiāo)售額109889.2那么稅負(fù)是1% 需要交納 109889.2*0.01=1098.89 109889.2*0.17-X=1098.89X=17582.28(進(jìn)項(xiàng)稅）17582.28/0.17=103425.14+17582.28=121007.42（含稅的進(jìn)項(xiàng)發(fā)票）需要認(rèn)證121007.42元的發(fā)票 銷(xiāo)項(xiàng)109889.2*0.17=18681.16進(jìn)項(xiàng)17582.28應(yīng)納稅金18681.16-17582.28=1098.88