-15.56% is the change from 649 to 548
Calculation steps:
[( 548 - 649 ) ÷ 649] x 100 = -15.56%
Formula
Percentage change = [(548 - 649) / 649] x 100
Subtract the new number by the original number
548 - 649 = -101
-101 ÷ 649 = -0.15562403697996918
-0.15562403697996918 x 100 = -15.56%