-20.78% is the change from 919 to 728
Calculation steps:
[( 728 - 919 ) ÷ 919] x 100 = -20.78%
Formula
Percentage change = [(728 - 919) / 919] x 100
Subtract the new number by the original number
728 - 919 = -191
-191 ÷ 919 = -0.20783460282916214
-0.20783460282916214 x 100 = -20.78%