如题所述
按贷款利率5.88%,到2020年,还款四年,(850000*(1+5.88%/12)^48*((1+5.88%/12)^312-1)/((1+5.88%/12)^360-1)-200000)*(1+5.88%/12)^312*5.88%/12/((1+5.88%/12)^312-1)=3778.22元。