-17.61% is the change from 477 to 393
Calculation steps:
[( 393 - 477 ) ÷ 477] x 100 = -17.61%
Formula
Percentage change = [(393 - 477) / 477] x 100
Subtract the new number by the original number
393 - 477 = -84
-84 ÷ 477 = -0.1761006289308176
-0.1761006289308176 x 100 = -17.61%