-77% is the change from 861 to 198
Calculation steps:
[( 198 - 861 ) ÷ 861] x 100 = -77%
Formula
Percentage change = [(198 - 861) / 861] x 100
Subtract the new number by the original number
198 - 861 = -663
-663 ÷ 861 = -0.7700348432055749
-0.7700348432055749 x 100 = -77%