-34.24% is the change from 479 to 315
Calculation steps:
[( 315 - 479 ) ÷ 479] x 100 = -34.24%
Formula
Percentage change = [(315 - 479) / 479] x 100
Subtract the new number by the original number
315 - 479 = -164
-164 ÷ 479 = -0.34237995824634654
-0.34237995824634654 x 100 = -34.24%