-2.66% is the change from 526 to 512
Calculation steps:
[( 512 - 526 ) ÷ 526] x 100 = -2.66%
Formula
Percentage change = [(512 - 526) / 526] x 100
Subtract the new number by the original number
512 - 526 = -14
-14 ÷ 526 = -0.026615969581749048
-0.026615969581749048 x 100 = -2.66%