Offensive Mastery - Havoc?

[quote=Alahric][img]http://images1.wikia.nocookie.net/__cb20091127185514/leagueoflegends/images/5/5b/Havoc.png[/img][url=http://leagueoflegends.wikia.com/wiki/Havoc][b][size=7]Havoc[/size][/b][/url] [i]Increases your physical damage and magic damage by 5%.[/i] My question is wether or not it boosts all your damage by 5%, or only your base damage by 5% Let's say you got a Nunu with Havoc, 100AP (AP ratio 100%) and lv 5 Ice Blast that deals 275 Base Damage: [b]A) 275 x 1.05 + (100 x 1.0) = 388.75 Magic Damage? B) 275 + (100 x 1.0) x 1.05 = 393.75 Magic Damage? - Without Havoc: 275 + (100 x 1.0) = 375 Magic Damage![/b] A or B? Which is calculated correctly with Havoc? PS: Please confirm your answer with URL's, I only found debates on it with two different answers. [url]https://www.leagueoflegends.com/board/showthread.php?t=45971[/url] [url]http://www.leagueoflegends.com/board/showthread.php?t=130526[/url][/quote]

[quote=DEWO]Havoc increases BASE damage. So no items, no runes, no other masteries are taken into consideration on the 5% buff. If a champion has 100 base damage and has +9000AD from items it will still give that person only 5AD. Same for spells. Base amount without penetration/ap bla bla bla.[/quote]

[quote=Alahric][quote=DEWO] Havoc increases BASE damage. So no items, no runes, no other masteries are taken into consideration on the 5% buff. If a champion has 100 base damage and has +9000AD from items it will still give that person only 5AD. Same for spells. Base amount without penetration/ap bla bla bla. [/quote]Thank you, I thought so ^ ^,[/quote]

[quote=Searz]Whaaaaaaaaat, that sucks :( I always thought it gave +5%total dmg..[/quote]