-22.96% is the change from 858 to 661
Calculation steps:
[( 661 - 858 ) ÷ 858] x 100 = -22.96%
Formula
Percentage change = [(661 - 858) / 858] x 100
Subtract the new number by the original number
661 - 858 = -197
-197 ÷ 858 = -0.2296037296037296
-0.2296037296037296 x 100 = -22.96%