int value;
float volt;
float percent;
int max_value = 8191;
float max_volt = 3.3;


void setup() {
  Serial.begin(115200);
 }

void loop() {
  value=analogRead(12);
  volt=max_volt*value/max_value;
  percent = value*100/max_value;
  Serial.print("Value: ");
  Serial.print(value);
  Serial.print("\t");
  Serial.print("Percent: ");
  Serial.print(percent,2);
  Serial.print("\t");
  Serial.print("\t");
  Serial.print("Voltage: ");
  Serial.println(volt,1);
  delay(100); // this speeds up the simulation
}