-23.73% is the change from 649 to 495
Calculation steps:
[( 495 - 649 ) ÷ 649] x 100 = -23.73%
Formula
Percentage change = [(495 - 649) / 649] x 100
Subtract the new number by the original number
495 - 649 = -154
-154 ÷ 649 = -0.23728813559322035
-0.23728813559322035 x 100 = -23.73%