-35.28% is the change from 839 to 543
Calculation steps:
[( 543 - 839 ) ÷ 839] x 100 = -35.28%
Formula
Percentage change = [(543 - 839) / 839] x 100
Subtract the new number by the original number
543 - 839 = -296
-296 ÷ 839 = -0.3528009535160906
-0.3528009535160906 x 100 = -35.28%