-27.58% is the change from 649 to 470
Calculation steps:
[( 470 - 649 ) ÷ 649] x 100 = -27.58%
Formula
Percentage change = [(470 - 649) / 649] x 100
Subtract the new number by the original number
470 - 649 = -179
-179 ÷ 649 = -0.275808936825886
-0.275808936825886 x 100 = -27.58%