Talk:Ability/@comment-107.2.86.221-20130321020139/@comment-6236837-20130321134128

It is based on the power of the boost and the focus of the boost:

From what I have read, the single faction "extreme" boost of Spidey (and Doom) should give a base 20% plus 1% per level and 2% at level 10 for a total of 30%, while a "significant" boost like Cap or Ghost Rider amongst others would give 16% plus 0.9% per level and 1.8% at level 10 for a total of 25%.

Dual boosts and global boosts degrade down to 0.8% per level and 1.6% at level 10 for either extreme or significant.