-54.3% is the change from 477 to 218
Calculation steps:
[( 218 - 477 ) ÷ 477] x 100 = -54.3%
Formula
Percentage change = [(218 - 477) / 477] x 100
Subtract the new number by the original number
218 - 477 = -259
-259 ÷ 477 = -0.5429769392033543
-0.5429769392033543 x 100 = -54.3%