-36.6% is the change from 836 to 530
Calculation steps:
[( 530 - 836 ) ÷ 836] x 100 = -36.6%
Formula
Percentage change = [(530 - 836) / 836] x 100
Subtract the new number by the original number
530 - 836 = -306
-306 ÷ 836 = -0.3660287081339713
-0.3660287081339713 x 100 = -36.6%