-88.4% is the change from 836 to 97
Calculation steps:
[( 97 - 836 ) ÷ 836] x 100 = -88.4%
Formula
Percentage change = [(97 - 836) / 836] x 100
Subtract the new number by the original number
97 - 836 = -739
-739 ÷ 836 = -0.8839712918660287
-0.8839712918660287 x 100 = -88.4%