-20.91% is the change from 397 to 314
Calculation steps:
[( 314 - 397 ) ÷ 397] x 100 = -20.91%
Formula
Percentage change = [(314 - 397) / 397] x 100
Subtract the new number by the original number
314 - 397 = -83
-83 ÷ 397 = -0.20906801007556675
-0.20906801007556675 x 100 = -20.91%