When I had my 2003 S10 2.2L, I discovered it used the same AC compressor as the 5.7L. So for me, it was probably 25% but man, turning it off with a double downshift going uphill felt like I had a mild turbo! Meanwhile the AC compressor on my then MX5 was this cute little thing. I never really felt any power loss from it.
Pros: MX5 AC no power loss
Cons: S10 AC significant power loss
Vehicle:
Chevrolet
