-11.27% is the change from 355 to 315
Calculation steps:
[( 315 - 355 ) ÷ 355] x 100 = -11.27%
Formula
Percentage change = [(315 - 355) / 355] x 100
Subtract the new number by the original number
315 - 355 = -40
-40 ÷ 355 = -0.11267605633802817
-0.11267605633802817 x 100 = -11.27%