-33.73% is the change from 839 to 556
Calculation steps:
[( 556 - 839 ) ÷ 839] x 100 = -33.73%
Formula
Percentage change = [(556 - 839) / 839] x 100
Subtract the new number by the original number
556 - 839 = -283
-283 ÷ 839 = -0.33730631704410013
-0.33730631704410013 x 100 = -33.73%