-16.33% is the change from 649 to 543
Calculation steps:
[( 543 - 649 ) ÷ 649] x 100 = -16.33%
Formula
Percentage change = [(543 - 649) / 649] x 100
Subtract the new number by the original number
543 - 649 = -106
-106 ÷ 649 = -0.1633281972265023
-0.1633281972265023 x 100 = -16.33%