Mostrando % de luz -LCD

#include <LiquidCrystal.h>
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);


void setup()
{
  lcd.begin(16, 2);
    //Serial.begin(9600);

}
void loop()
{
  lcd.setCursor(0, 1);
  int val = analogRead(0);
  val= (val*100)/1000;
  lcd.print("LuzAmbiente:");
  //Serial.println(val);
  lcd.print(val);
  lcd.print("%");
  delay(2000);
  lcd.clear();

}