-14.74% is the change from 631 to 538
Calculation steps:
[( 538 - 631 ) ÷ 631] x 100 = -14.74%
Formula
Percentage change = [(538 - 631) / 631] x 100
Subtract the new number by the original number
538 - 631 = -93
-93 ÷ 631 = -0.1473851030110935
-0.1473851030110935 x 100 = -14.74%