-12.24% is the change from 727 to 638
Calculation steps:
[( 638 - 727 ) ÷ 727] x 100 = -12.24%
Formula
Percentage change = [(638 - 727) / 727] x 100
Subtract the new number by the original number
638 - 727 = -89
-89 ÷ 727 = -0.12242090784044017
-0.12242090784044017 x 100 = -12.24%