-27.73% is the change from 887 to 641
Calculation steps:
[( 641 - 887 ) ÷ 887] x 100 = -27.73%
Formula
Percentage change = [(641 - 887) / 887] x 100
Subtract the new number by the original number
641 - 887 = -246
-246 ÷ 887 = -0.2773393461104848
-0.2773393461104848 x 100 = -27.73%