-16.46% is the change from 650 to 543
Calculation steps:
[( 543 - 650 ) ÷ 650] x 100 = -16.46%
Formula
Percentage change = [(543 - 650) / 650] x 100
Subtract the new number by the original number
543 - 650 = -107
-107 ÷ 650 = -0.1646153846153846
-0.1646153846153846 x 100 = -16.46%