-30.82% is the change from 477 to 330
Calculation steps:
[( 330 - 477 ) ÷ 477] x 100 = -30.82%
Formula
Percentage change = [(330 - 477) / 477] x 100
Subtract the new number by the original number
330 - 477 = -147
-147 ÷ 477 = -0.3081761006289308
-0.3081761006289308 x 100 = -30.82%