-2.3% is the change from 827 to 808
Calculation steps:
[( 808 - 827 ) ÷ 827] x 100 = -2.3%
Formula
Percentage change = [(808 - 827) / 827] x 100
Subtract the new number by the original number
808 - 827 = -19
-19 ÷ 827 = -0.022974607013301087
-0.022974607013301087 x 100 = -2.3%