-33.96% is the change from 477 to 315
Calculation steps:
[( 315 - 477 ) ÷ 477] x 100 = -33.96%
Formula
Percentage change = [(315 - 477) / 477] x 100
Subtract the new number by the original number
315 - 477 = -162
-162 ÷ 477 = -0.33962264150943394
-0.33962264150943394 x 100 = -33.96%