Unity Scaling an object from scripts

my script is this...When i scale the object it transform.position gets the same but in the world it shows at different position.

using UnityEngine; using System.Collections;

public class size1 : MonoBehaviour {

 // Update is called once per frame

 void Update() {
     
 
     
         
     
     
     if(abc.Ball1>900 && abc.Ball1<=1000)
     {
         
         transform.localScale=new Vector3(1.5f,1.5f,1.5f);
     }
     else if(abc.Ball1>800 && abc.Ball1<=900)
     {        
         transform.localScale=new Vector3(1.3f,1.3f,1.3f);
     }
     else if(abc.Ball1>700 && abc.Ball1<=800)
     {        
         transform.localScale= new Vector3(1.1f,1.1f,1.1f);
     }
     else if(abc.Ball1>600 && abc.Ball1<=700)
     {        
         transform.localScale= new Vector3(.9f,.9f,.9f);
     }
     else if(abc.Ball1>500 && abc.Ball1<=600)
     {        
         transform.localScale=new Vector3(.7f,.7f,.7f);
     }
     else if(abc.Ball1>400 && abc.Ball1<=500)
     {        
         transform.localScale=new Vector3(.5f,.5f,.5f);
     }
     else if(abc.Ball1>300 && abc.Ball1<=400)
     {        
         transform.localScale=new Vector3(.4f,.4f,.4f);
     }
     else if(abc.Ball1>200 && abc.Ball1<=300)
     {        
         transform.localScale= new Vector3(.3f,.3f,.3f);
     }
     else if(abc.Ball1>150 && abc.Ball1<=200)
     {        
         transform.localScale= new Vector3(.2f,.2f,.2f);
     }
     else if(abc.Ball1>=50 && abc.Ball1<=150)
     {        
         transform.localScale=new Vector3(.1f,.1f,.1f);
     }
     else if(abc.Ball1>0 && abc.Ball1<50)
     {        
         transform.localScale= new Vector3(0f,0f,0f);
     }
 
 }

}