-70.75% is the change from 858 to 251
Calculation steps:
[( 251 - 858 ) ÷ 858] x 100 = -70.75%
Formula
Percentage change = [(251 - 858) / 858] x 100
Subtract the new number by the original number
251 - 858 = -607
-607 ÷ 858 = -0.7074592074592074
-0.7074592074592074 x 100 = -70.75%