-33.85% is the change from 839 to 555
Calculation steps:
[( 555 - 839 ) ÷ 839] x 100 = -33.85%
Formula
Percentage change = [(555 - 839) / 839] x 100
Subtract the new number by the original number
555 - 839 = -284
-284 ÷ 839 = -0.33849821215733017
-0.33849821215733017 x 100 = -33.85%