-23.76% is the change from 867 to 661
Calculation steps:
[( 661 - 867 ) ÷ 867] x 100 = -23.76%
Formula
Percentage change = [(661 - 867) / 867] x 100
Subtract the new number by the original number
661 - 867 = -206
-206 ÷ 867 = -0.23760092272202998
-0.23760092272202998 x 100 = -23.76%