3,8% :12 × 8 = [(3,8/100)/12]××8=19/6000 ××8 =19/750=2,5(3)%
100%+2,5(3)%=102,5(3)%
102,5(3)/100=[(10253-1025)/90]/100=
=(9228/90)/100=4614/4500=1538/1500
418336 : 102,5(3)%=418336 :1538/1500=418336 ×1500/1538=
=272××1500=408000 lei
capitalul initial 408000 lei