-57.69% is the change from 839 to 355
Calculation steps:
[( 355 - 839 ) ÷ 839] x 100 = -57.69%
Formula
Percentage change = [(355 - 839) / 839] x 100
Subtract the new number by the original number
355 - 839 = -484
-484 ÷ 839 = -0.5768772348033373
-0.5768772348033373 x 100 = -57.69%