-12.12% is the change from 726 to 638
Calculation steps:
[( 638 - 726 ) ÷ 726] x 100 = -12.12%
Formula
Percentage change = [(638 - 726) / 726] x 100
Subtract the new number by the original number
638 - 726 = -88
-88 ÷ 726 = -0.12121212121212122
-0.12121212121212122 x 100 = -12.12%