进项:3.91+3*7%+1.36+44.1*13%=11.213万销项:42*17%=7.14万进项转出:1.36*2=2.72万期初留抵:0.5万期末留抵税额:11.213-2.72-0.5-7.14=0.853
当期应纳增值说=当期增值税销项税额-可抵扣的进项税额题中销项税额=42*0.17=7.14 进项税额=3.91+1.36+44.1*抵扣率(按国家规定抵扣率)+0.50二者之差为当期应纳增值税