-11.54% is the change from 728 to 644
Calculation steps:
[( 644 - 728 ) ÷ 728] x 100 = -11.54%
Formula
Percentage change = [(644 - 728) / 728] x 100
Subtract the new number by the original number
644 - 728 = -84
-84 ÷ 728 = -0.11538461538461539
-0.11538461538461539 x 100 = -11.54%