1057320170807.313.751113.7516176555501055550345442010101051053152002002100300501002.355101012110550001206352500030003008001.2%55200050001.51241655*21=11555*120+63+0.5*120*2+63+2+0.3*300+800=3596.516*1.2%=19201920+3596.5+1155=6671.51.61.4900050010040010106200005000500102000200002000020005002000505011.63050050