-0.32% is the change from 315 to 314
Calculation steps:
[( 314 - 315 ) ÷ 315] x 100 = -0.32%
Formula
Percentage change = [(314 - 315) / 315] x 100
Subtract the new number by the original number
314 - 315 = -1
-1 ÷ 315 = -0.0031746031746031746
-0.0031746031746031746 x 100 = -0.32%