-17.11% is the change from 380 to 315
Calculation steps:
[( 315 - 380 ) ÷ 380] x 100 = -17.11%
Formula
Percentage change = [(315 - 380) / 380] x 100
Subtract the new number by the original number
315 - 380 = -65
-65 ÷ 380 = -0.17105263157894737
-0.17105263157894737 x 100 = -17.11%