Not sure of the ScummVM interface, my version is DosBox. Are you using the arrow icon and the tip of the arrow to select the numbers? It's strange that it would be that far off. Actually, I just solved the game and went back and found a save to try this puzzle again and noticed that it's a bit forgiving in the value tolerance, at least for DosBox. I was originally clicking it ultra-carefully trying to be like a professional safe cracker and then realized as long as you click in the general vicinity of the number it still solved the puzzle! Again, the only thing I can suggest is use the tip of the default arrow icon for this puzzle and if it's still off try to see if you can zero in on what the target "hit box" is to have it select the correct value. Good luck!

Note: There also appears to be a bug with this puzzle! When you finally solve this, make sure you take out the contents immediately. If you back out of the puzzle, the safe closes and the puzzle is deactivated with the contents still inside and apparently no way to reset the puzzle! Best bet is load your previous save and do it again.

I had to work out how far the dial would turn with clicking in certain spots, and trial & error my way to solve this one in ScummVM. I have logged a bug report at https://bugs.scummvm.org/ticket/11410 and encourage anyone using the same setup having the same issues to follow along and provide any files that may be of assistance to the devs.