-13.02% is the change from 315 to 274
Calculation steps:
[( 274 - 315 ) ÷ 315] x 100 = -13.02%
Formula
Percentage change = [(274 - 315) / 315] x 100
Subtract the new number by the original number
274 - 315 = -41
-41 ÷ 315 = -0.13015873015873017
-0.13015873015873017 x 100 = -13.02%