-60.14% is the change from 858 to 342
Calculation steps:
[( 342 - 858 ) ÷ 858] x 100 = -60.14%
Formula
Percentage change = [(342 - 858) / 858] x 100
Subtract the new number by the original number
342 - 858 = -516
-516 ÷ 858 = -0.6013986013986014
-0.6013986013986014 x 100 = -60.14%