-46.54% is the change from 477 to 255
Calculation steps:
[( 255 - 477 ) ÷ 477] x 100 = -46.54%
Formula
Percentage change = [(255 - 477) / 477] x 100
Subtract the new number by the original number
255 - 477 = -222
-222 ÷ 477 = -0.46540880503144655
-0.46540880503144655 x 100 = -46.54%