So how exactly are bonus percentages calculated?

[Thumpr]

I have two units that both have -20% health regen. The my faction bonus is -15% health regen. When I look at my bonuses on my profile it says -45%. I was a history major for a reason. To me, 2+2=chair, so if someone could explain it, I would appreciate it. Thanks.

[Philly982]

Bonuses that reduce (health regen, casualty reduction) are multiplicative and do not add. For example if you had three 5% faction health regen bonuses and two 20% health regen units it would be 1-(0.95 x 0.95 x 0.95 x 0.80 x 0.80) = 0.4512 or 45%

[Thumpr]

Awesome, thanks for the explanation.

[Lou Sir]

I have two units that both have -20% health regen. The my faction bonus is -15% health regen. When I look at my bonuses on my profile it says -45%. I was a history major for a reason. To me, 2+2=chair, so if someone could explain it, I would appreciate it. Thanks.

Here my math and work for me all the time let use urs 45%
25 - (25/100*45)= 25 - 11.25= 13.75 mins so if u are -45% then u hav 25 health in every 13 mins 45 sec.
25 - (25/100*57)= 25 - 14.25= 10.75 mins so if u are -57% then u hav 25 health in every 10 mins 45 sec.