-5.15% is the change from 330 to 313
Calculation steps:
[( 313 - 330 ) ÷ 330] x 100 = -5.15%
Formula
Percentage change = [(313 - 330) / 330] x 100
Subtract the new number by the original number
313 - 330 = -17
-17 ÷ 330 = -0.051515151515151514
-0.051515151515151514 x 100 = -5.15%