-35.59% is the change from 843 to 543
Calculation steps:
[( 543 - 843 ) ÷ 843] x 100 = -35.59%
Formula
Percentage change = [(543 - 843) / 843] x 100
Subtract the new number by the original number
543 - 843 = -300
-300 ÷ 843 = -0.35587188612099646
-0.35587188612099646 x 100 = -35.59%