const int analogInPin = A0;  // Analog input pin that the potentiometer is attached to
const int analogOutPin = 9;  // Digital pin 9
int potValue = 0;  // value read from the pot
int outputPWM = 0;  // value output to the PWM (analog out)
int Duty = 0;
int delaytime = 1000; 

void setup() {
  Serial.begin(9600);
}

void loop() {
  // read the analog in value:
  potValue = analogRead(analogInPin);
  // map it to the range of the analog out:
  outputPWM = map(potValue, 0, 1023, 0, 255);
  Duty = map(outputPWM, 0, 255, 0, 100 );
  // change the analog out value:
  analogWrite(analogOutPin, outputPWM);

  // print the results to the Serial Monitor:
  Serial.print("Pot Value = ");
  Serial.print(potValue);
  Serial.print("\t Output PWM = ");
  Serial.print(outputPWM);
  Serial.print("\t Duty = ");
  Serial.println(Duty);

  delay(delaytime); // change the frequency
}