-59.24% is the change from 839 to 342
Calculation steps:
[( 342 - 839 ) ÷ 839] x 100 = -59.24%
Formula
Percentage change = [(342 - 839) / 839] x 100
Subtract the new number by the original number
342 - 839 = -497
-497 ÷ 839 = -0.5923718712753278
-0.5923718712753278 x 100 = -59.24%