-21.27% is the change from 395 to 311
Calculation steps:
[( 311 - 395 ) ÷ 395] x 100 = -21.27%
Formula
Percentage change = [(311 - 395) / 395] x 100
Subtract the new number by the original number
311 - 395 = -84
-84 ÷ 395 = -0.21265822784810126
-0.21265822784810126 x 100 = -21.27%