-12.5% is the change from 728 to 637
Calculation steps:
[( 637 - 728 ) ÷ 728] x 100 = -12.5%
Formula
Percentage change = [(637 - 728) / 728] x 100
Subtract the new number by the original number
637 - 728 = -91
-91 ÷ 728 = -0.125
-0.125 x 100 = -12.5%