-95.02% is the change from 623 to 31
Calculation steps:
[( 31 - 623 ) ÷ 623] x 100 = -95.02%
Formula
Percentage change = [(31 - 623) / 623] x 100
Subtract the new number by the original number
31 - 623 = -592
-592 ÷ 623 = -0.9502407704654896
-0.9502407704654896 x 100 = -95.02%