-15.41% is the change from 649 to 549
Calculation steps:
[( 549 - 649 ) ÷ 649] x 100 = -15.41%
Formula
Percentage change = [(549 - 649) / 649] x 100
Subtract the new number by the original number
549 - 649 = -100
-100 ÷ 649 = -0.15408320493066255
-0.15408320493066255 x 100 = -15.41%