-84.55% is the change from 589 to 91
Calculation steps:
[( 91 - 589 ) ÷ 589] x 100 = -84.55%
Formula
Percentage change = [(91 - 589) / 589] x 100
Subtract the new number by the original number
91 - 589 = -498
-498 ÷ 589 = -0.8455008488964346
-0.8455008488964346 x 100 = -84.55%