-71.14% is the change from 887 to 256
Calculation steps:
[( 256 - 887 ) ÷ 887] x 100 = -71.14%
Formula
Percentage change = [(256 - 887) / 887] x 100
Subtract the new number by the original number
256 - 887 = -631
-631 ÷ 887 = -0.7113866967305524
-0.7113866967305524 x 100 = -71.14%