How to change the scale my Blender assets

How to scale the model 100 times
1. Off the auto key.
2. Snap the cursor to center(Shift+s)
3. Set Pivot to 3d cursor.
4. Select the armature in object mode.
5. Scale the armature(s+100).
6. Select the IKTargets.
7. Open graph editer.
8. Set 2d cursor to 0
9. Set Pivot to 2d cursor.
10. Show location key only(input "loc" in the search window).
11. Select all key frames.
12. Scale the keys y direction(s+y+100)
13. Select the armature in object mode.
14. Apply Scale.(Here the animation will be broken.)
15. Select all bones in pose mode.
16. Show location key only(Enter "loc" at the magnifying glass mark in the graph editor.).
17. Select all key frames.
18. Scale the keys y direction(s+y+100)