-30.99% is the change from 455 to 314
Calculation steps:
[( 314 - 455 ) ÷ 455] x 100 = -30.99%
Formula
Percentage change = [(314 - 455) / 455] x 100
Subtract the new number by the original number
314 - 455 = -141
-141 ÷ 455 = -0.3098901098901099
-0.3098901098901099 x 100 = -30.99%