-59% is the change from 839 to 344
Calculation steps:
[( 344 - 839 ) ÷ 839] x 100 = -59%
Formula
Percentage change = [(344 - 839) / 839] x 100
Subtract the new number by the original number
344 - 839 = -495
-495 ÷ 839 = -0.5899880810488677
-0.5899880810488677 x 100 = -59%