-21.46% is the change from 396 to 311
Calculation steps:
[( 311 - 396 ) ÷ 396] x 100 = -21.46%
Formula
Percentage change = [(311 - 396) / 396] x 100
Subtract the new number by the original number
311 - 396 = -85
-85 ÷ 396 = -0.21464646464646464
-0.21464646464646464 x 100 = -21.46%