-88.98% is the change from 826 to 91
Calculation steps:
[( 91 - 826 ) ÷ 826] x 100 = -88.98%
Formula
Percentage change = [(91 - 826) / 826] x 100
Subtract the new number by the original number
91 - 826 = -735
-735 ÷ 826 = -0.8898305084745762
-0.8898305084745762 x 100 = -88.98%