-28.92% is the change from 861 to 612
Calculation steps:
[( 612 - 861 ) ÷ 861] x 100 = -28.92%
Formula
Percentage change = [(612 - 861) / 861] x 100
Subtract the new number by the original number
612 - 861 = -249
-249 ÷ 861 = -0.289198606271777
-0.289198606271777 x 100 = -28.92%