Larian Studios Forums Divinity - Original Sin Divinity Original Sin - Help/Tips/Tricks How do willpower/bodybuilding saving throws work?

For example crushing fist has a "100% chance to set knock down", but what does it mean when I have lower strength and I have a 90% chance to "set" knock down?

Is that % chance separate to the willpower/bb saving throw, and that you have to make that chance to "set" the status and then the saving throw comes after?

Or does it mean at 100% strength the target makes a normal saving throw and at 90% (or 105%) the target has a bonus (or penalty) to the saving throw?