-38.58% is the change from 858 to 527
Calculation steps:
[( 527 - 858 ) ÷ 858] x 100 = -38.58%
Formula
Percentage change = [(527 - 858) / 858] x 100
Subtract the new number by the original number
527 - 858 = -331
-331 ÷ 858 = -0.38578088578088576
-0.38578088578088576 x 100 = -38.58%