-2.21% is the change from 907 to 887
Calculation steps:
[( 887 - 907 ) ÷ 907] x 100 = -2.21%
Formula
Percentage change = [(887 - 907) / 907] x 100
Subtract the new number by the original number
887 - 907 = -20
-20 ÷ 907 = -0.022050716648291068
-0.022050716648291068 x 100 = -2.21%