So, I have question in regards to buffs.

When you get a buff in-game, is it buffing you based off your Base Attack (The White Stat on your character page) or your total attack, (White Stat + Green Bonus)

IE:

If I have 500 Attack, and +500 attack, if I get a 50% attack buff, am I gaining 50 attack, from the 500 base attack, or 500 attack, from the combine attack values?

Further, does this work the same on all buffs? Such as speed, defense, ect.