-22.67% is the change from 816 to 631
Calculation steps:
[( 631 - 816 ) ÷ 816] x 100 = -22.67%
Formula
Percentage change = [(631 - 816) / 816] x 100
Subtract the new number by the original number
631 - 816 = -185
-185 ÷ 816 = -0.2267156862745098
-0.2267156862745098 x 100 = -22.67%