It's embarrassing but I can't seem to wrap my head around this simple example..Take the one on pg. 43, Advantages for Strength:
"Example: Grond (STR 90) wants the ability to do a "Shockwave" - to slam the ground with his fists and damage anyone standing nearby. He buys that as a naked Area of Effect (Radius Explosion) Advantage for his STR, witch certain Power Modifiers:
Area of Effect (16m Surface Radius Explosion; +1/2) for up to 90 STR, Hole In The Middle (the 1m radius area Grond stands in when he uses the power;+1/4) (56 points); Can Only Be Applied To Horizontal Surfaces (-1/4), Extra Time (Full Phase, -1/2), Only Does Knockdown, Not Knockback (-0). Total cost: 32 points"
What is confusing me the Active cost, how to calculate that? In theory, the base cost for this would be 32 (32*(1+0.5+0.25)=56), but I don't understand the initial Active cost. What do I miss? And excuse me for the lame question.