-52.2% is the change from 477 to 228
Calculation steps:
[( 228 - 477 ) ÷ 477] x 100 = -52.2%
Formula
Percentage change = [(228 - 477) / 477] x 100
Subtract the new number by the original number
228 - 477 = -249
-249 ÷ 477 = -0.5220125786163522
-0.5220125786163522 x 100 = -52.2%