-68.53% is the change from 858 to 270
Calculation steps:
[( 270 - 858 ) ÷ 858] x 100 = -68.53%
Formula
Percentage change = [(270 - 858) / 858] x 100
Subtract the new number by the original number
270 - 858 = -588
-588 ÷ 858 = -0.6853146853146853
-0.6853146853146853 x 100 = -68.53%