-2.2% is the change from 908 to 888
Calculation steps:
[( 888 - 908 ) ÷ 908] x 100 = -2.2%
Formula
Percentage change = [(888 - 908) / 908] x 100
Subtract the new number by the original number
888 - 908 = -20
-20 ÷ 908 = -0.022026431718061675
-0.022026431718061675 x 100 = -2.2%