-17.4% is the change from 477 to 394
Calculation steps:
[( 394 - 477 ) ÷ 477] x 100 = -17.4%
Formula
Percentage change = [(394 - 477) / 477] x 100
Subtract the new number by the original number
394 - 477 = -83
-83 ÷ 477 = -0.1740041928721174
-0.1740041928721174 x 100 = -17.4%