-27.27% is the change from 11 to 8
Calculation steps:
[( 8 - 11 ) ÷ 11] x 100 = -27.27%
Formula
Percentage change = [(8 - 11) / 11] x 100
Subtract the new number by the original number
8 - 11 = -3
-3 ÷ 11 = -0.2727272727272727
-0.2727272727272727 x 100 = -27.27%