Scale messing with code

I have a coin in my game that when collected(using trigger) gives the player points and also an audio play.

The coin was small so I increase the scale to 4.

but now audio and points are 4 times the amount they should be.

eg. instead of 1 point you get 4 and instead of 1 audio it plays 4 times.

Here's my code:

for score:

 var score = 0;
 
 function OnTriggerEnter( other : Collider ) {    
    if (other.tag == "Coin") {        
       score += 1;        
       Destroy(other.gameObject, .9);
    }

and audio:

 var flushClip:AudioClip;
 
 function OnTriggerExit(o:Collider){
   
   audio.PlayOneShot(flushClip);
   
   }

I'm guessing I have to change the scale back to 1 but then the prefab is too small.