-46.43% is the change from 476 to 255
Calculation steps:
[( 255 - 476 ) ÷ 476] x 100 = -46.43%
Formula
Percentage change = [(255 - 476) / 476] x 100
Subtract the new number by the original number
255 - 476 = -221
-221 ÷ 476 = -0.4642857142857143
-0.4642857142857143 x 100 = -46.43%