netincome.js

function NETINCOME(salary, inf, t) {
  var ret=0;
  var workSal = salary;
  var proBracketPer = [0.0, 0.16, 0.2, 0.24, 0.2575];
  var fedBracketPer = [0.0, 0.15, 0.22, 0.26, 0.29];
  var proBrackets = [11327, 41935*Math.pow(inf, t), 83865*Math.pow(inf, t), 102040*Math.pow(inf, t), 999999];
  var fedBrackets = [11327, 44701*Math.pow(inf, t), 89401*Math.pow(inf, t), 138586*Math.pow(inf, t), 999999];


  for(i=3; i>=0; i--){
    if(workSal>proBrackets[i] && workSal<proBrackets[i+1]){
      ret = (ret+(workSal-proBrackets[i])*proBracketPer[i+1]);
      workSal=proBrackets[i]-1;
    }
  }

  workSal = salary;
  for(i=3; i>=0; i--){
    if(workSal>fedBrackets[i] && workSal<fedBrackets[i+1]){
      ret = (ret+(workSal-fedBrackets[i])*fedBracketPer[i+1]);
      workSal=fedBrackets[i]-1;
    }
  }


  return salary-ret;
}