Advanced Enhancement Scrolls

Let's say you pass 3 enhancement scrolls on your weapon. If you then use an advanced enhancement scroll do you still have a 100% chance of passing it, or is it a 70% of passing since you would already have 3 stars?

I saw an advanced enhancement scroll in the FM last night and am thinking about buying it for my weapon.

Thanks

70%.

It's determined by the number of stars already on the item, not the times that type of scroll has been used.

Thank you both.