-13.79% is the change from 319 to 275
Calculation steps:
[( 275 - 319 ) ÷ 319] x 100 = -13.79%
Formula
Percentage change = [(275 - 319) / 319] x 100
Subtract the new number by the original number
275 - 319 = -44
-44 ÷ 319 = -0.13793103448275862
-0.13793103448275862 x 100 = -13.79%