-22.61% is the change from 858 to 664
Calculation steps:
[( 664 - 858 ) ÷ 858] x 100 = -22.61%
Formula
Percentage change = [(664 - 858) / 858] x 100
Subtract the new number by the original number
664 - 858 = -194
-194 ÷ 858 = -0.2261072261072261
-0.2261072261072261 x 100 = -22.61%