hey i have 11 scene,i press button to give 1 score and change scene,when i change scene score don't save. pls help

public Text scoreText;
public int score;
void OnMouseUpAsButton () {

 switch (gameObject.name) {
 case "cistig":
     score++;
     scoreText.text = "Score:" + score;
     PlayerPrefs.SetFloat("Player Score", 10.0F);
     PlayerPrefs.SetInt("score", score);
     PlayerPrefs.Save();
 break;    
 }

}

Save your player variables in a DontDestroyOnLoad() GameObject