-19.72% is the change from 786 to 631
Calculation steps:
[( 631 - 786 ) ÷ 786] x 100 = -19.72%
Formula
Percentage change = [(631 - 786) / 786] x 100
Subtract the new number by the original number
631 - 786 = -155
-155 ÷ 786 = -0.19720101781170485
-0.19720101781170485 x 100 = -19.72%