-8.72% is the change from 344 to 314
Calculation steps:
[( 314 - 344 ) ÷ 344] x 100 = -8.72%
Formula
Percentage change = [(314 - 344) / 344] x 100
Subtract the new number by the original number
314 - 344 = -30
-30 ÷ 344 = -0.0872093023255814
-0.0872093023255814 x 100 = -8.72%