Calculate Income Tax

float income = 501000;
float incomeTax = 0;

void setup () {
  background (255, 51, 102);
  size (180, 50);
}

void draw () {
  if (income >= 150000) {
    if (income >= 15000 && income < 30000) {
      incomeTax = (income*10)/100;
        text ("Income Tax = "+incomeTax, 20, 30);
    }
    if (income >= 30000 && income < 50000) {
      incomeTax = (income*15)/100;
        text ("Income Tax = "+incomeTax, 20, 30);
    }
    if (income >= 50000 && income < 80000) {
      incomeTax = (income*20)/100;
        text ("Income Tax = "+incomeTax, 20, 30);
    }
    if (income >= 80000) {
      incomeTax = (income*25)/100;
        text ("Income Tax = "+incomeTax, 20, 30);
    }
  }
}