Arcane Knowledge + Void Staff = How much magic...

[quote=MrNicholas]Since [[Arcane Knowledge]] is 10% magic pen, and [[Void Staff]] is 40%, how much would that be? I know it's multiplicative I just don't know how to figure out how much magic pen it is.[/quote]

[quote=Darcurse].... for real? you know 40+10 = 50 , right?[/quote]

[quote=MrNicholas][quote=Darcurse] .... for real? you know 40+10 = 50 , right? [/quote] So it's 50? I was just wondering because [[Archaic Knowledge]] and [[Void Staff]] somehow added up to 49% magic penetration.[/quote]

[quote=Lugignaf]Doesn't stack like that. It stacks multiplicatively. I think it's somewhere around... 46% but that's just my best guess.[/quote]

[quote=MrNicholas][quote=Lugignaf] Doesn't stack like that. It stacks multiplicatively. I think it's somewhere around... 46% but that's just my best guess. [/quote] Alright, thanks. Maybe I'll just buy a [[Void Staff]] in a bot game and see what the cheat sheet says :p[/quote]

[quote=Darcurse]Yay editing your own post to match xD G R E A T[/quote]

[quote=MrNicholas][quote=Darcurse] Yay editing your own post to match xD G R E A T [/quote] Yeah, I mistook multiplicative for additive and I realized my mistake and I changed it. Isn't that what the edit button is for? Thanks for your support :)[/quote]

[quote=JEFFY40HANDS]some people use it so they don't look bad.[/quote]

[quote=MrNicholas][quote=JEFFY40HANDS] some people use it so they don't look bad. [/quote] Yeah. Well I saw earlier in a wiki post that it was multiplicative, I don't know why I put additive.[/quote]

[quote=Nethalas]10% reduction = 0.9x MR. 40% = 0.6x MR. 0.9 x 0.6 = 0.54x MR which is equal to a 46% reduction.[/quote]