-94.94% is the change from 613 to 31
Calculation steps:
[( 31 - 613 ) ÷ 613] x 100 = -94.94%
Formula
Percentage change = [(31 - 613) / 613] x 100
Subtract the new number by the original number
31 - 613 = -582
-582 ÷ 613 = -0.9494290375203915
-0.9494290375203915 x 100 = -94.94%