-4.1% is the change from 658 to 631
Calculation steps:
[( 631 - 658 ) ÷ 658] x 100 = -4.1%
Formula
Percentage change = [(631 - 658) / 658] x 100
Subtract the new number by the original number
631 - 658 = -27
-27 ÷ 658 = -0.041033434650455926
-0.041033434650455926 x 100 = -4.1%