-6.03% is the change from 315 to 296
Calculation steps:
[( 296 - 315 ) ÷ 315] x 100 = -6.03%
Formula
Percentage change = [(296 - 315) / 315] x 100
Subtract the new number by the original number
296 - 315 = -19
-19 ÷ 315 = -0.06031746031746032
-0.06031746031746032 x 100 = -6.03%