-26.87% is the change from 867 to 634
Calculation steps:
[( 634 - 867 ) ÷ 867] x 100 = -26.87%
Formula
Percentage change = [(634 - 867) / 867] x 100
Subtract the new number by the original number
634 - 867 = -233
-233 ÷ 867 = -0.2687427912341407
-0.2687427912341407 x 100 = -26.87%