-81.46% is the change from 631 to 117
Calculation steps:
[( 117 - 631 ) ÷ 631] x 100 = -81.46%
Formula
Percentage change = [(117 - 631) / 631] x 100
Subtract the new number by the original number
117 - 631 = -514
-514 ÷ 631 = -0.8145800316957211
-0.8145800316957211 x 100 = -81.46%