-36.84% is the change from 836 to 528
Calculation steps:
[( 528 - 836 ) ÷ 836] x 100 = -36.84%
Formula
Percentage change = [(528 - 836) / 836] x 100
Subtract the new number by the original number
528 - 836 = -308
-308 ÷ 836 = -0.3684210526315789
-0.3684210526315789 x 100 = -36.84%