-11.68% is the change from 728 to 643
Calculation steps:
[( 643 - 728 ) ÷ 728] x 100 = -11.68%
Formula
Percentage change = [(643 - 728) / 728] x 100
Subtract the new number by the original number
643 - 728 = -85
-85 ÷ 728 = -0.11675824175824176
-0.11675824175824176 x 100 = -11.68%