Quaternion.AngleAxis shows unexpected behaviour

I am rotating two circles in a game with mouse drag. Circle 1 rotates normally and circle 2 is expected to move opposite and slower. The problem occurs with Circle 2 only when i use Quaternion.AngleAxis and use a fraction factor to multiply with the angle used for circle 1.

Here is my code:

Code (CSharp):

1. using UnityEngine;
2. public GameObject Circle1, Circle2;
3.  
4. void OnMouseDown()
5.     {
6.         Vector3 pos = Camera.main.WorldToScreenPoint(transform.position);
7.         pos = Camera.main.WorldToScreenPoint(transform.position);
8.         pos = Input.mousePosition - pos;
9.         baseAngle = Mathf.Atan2(pos.y, pos.x) * Mathf.Rad2Deg;
10.         baseAngle -= Mathf.Atan2(transform.right.y, transform.right.x) * Mathf.Rad2Deg;
11.     }
12.  
13.     void OnMouseDrag()
14.     {
15.         Vector3 pos = Camera.main.WorldToScreenPoint(transform.position);
16.         pos = Input.mousePosition - pos;
17.         float ang = Mathf.Atan2(pos.y, pos.x) * Mathf.Rad2Deg - baseAngle;
18.         Circles1.transform.rotation = Quaternion.AngleAxis(ang, Vector3.forward);
19.         float sp = 0.2f;
20.         Circle2.transform.rotation = Quaternion.Inverse(ang * sp, Vector3.forward);
21. }
22.  

P.S with or without this baseAngle i used in code, there was no difference.