calculateTotalPrice function

String calculateTotalPrice(
  1. String amount
)

Implementation

String calculateTotalPrice(String amount) {
  double amt = double.parse(amount);
  if(amt<100){
    return ((amt+1).toInt()).toString();
  }else if(amt<2500){
    return _calculateFor2500Below(amt);
  }else{
    return _calculateFor2500Above(amt);
  }
}