-7.4% is the change from 338 to 313
Calculation steps:
[( 313 - 338 ) ÷ 338] x 100 = -7.4%
Formula
Percentage change = [(313 - 338) / 338] x 100
Subtract the new number by the original number
313 - 338 = -25
-25 ÷ 338 = -0.07396449704142012
-0.07396449704142012 x 100 = -7.4%