-84.71% is the change from 595 to 91
Calculation steps:
[( 91 - 595 ) ÷ 595] x 100 = -84.71%
Formula
Percentage change = [(91 - 595) / 595] x 100
Subtract the new number by the original number
91 - 595 = -504
-504 ÷ 595 = -0.8470588235294118
-0.8470588235294118 x 100 = -84.71%