-69.93% is the change from 858 to 258
Calculation steps:
[( 258 - 858 ) ÷ 858] x 100 = -69.93%
Formula
Percentage change = [(258 - 858) / 858] x 100
Subtract the new number by the original number
258 - 858 = -600
-600 ÷ 858 = -0.6993006993006993
-0.6993006993006993 x 100 = -69.93%