-22.42% is the change from 861 to 668
Calculation steps:
[( 668 - 861 ) ÷ 861] x 100 = -22.42%
Formula
Percentage change = [(668 - 861) / 861] x 100
Subtract the new number by the original number
668 - 861 = -193
-193 ÷ 861 = -0.22415795586527293
-0.22415795586527293 x 100 = -22.42%