bigdecimal eachprin = bigdecimal.valueof(payamount).divide(new bigdecimal(“期数”), bigdecimal.round_down)
bigdecimal totalfeeindecimal = bigdecimal.valueof(cent).multiply(feerate)
long totalfeeinlong = totalfeeindecimal.setscale(0, bigdecimal.round_half_even).longvalue()
bigdecimal eachfee = bigdecimal.valueof(totalfeeinlong).divide(new bigdecimal(“期数”), bigdecimal.round_down)