Lab2 : income tax [return]

int income;
void setup(){
  size(200,100);
  background(255);
  fill(0);
  text("tax = "+function(500000),50,50);
  println(function(500000));
}
int function (int x){
  int income = 0;
 if (x >= 800000){ //income is greater than or equal to 800000
  income = x*25/100;
 }else if((x < 800000)&&( x >= 500000)){ //income is less than 800000 and greater than or equal to 500000
 income = x*20/100;
 }else if((x  < 500000)&&(x  >= 300000)){ //income is less than 500000 and greater than or equal to 300000
 income = x*15/100;
 }else if((x < 300000)&&(x  >= 150000)){ //income is less than 300000 and greater than or equal to 150000
income = x*10/100;
 }else{ //income is less than 150000
income =  0;
 }
  return income;
}