-46.76% is the change from 479 to 255
Calculation steps:
[( 255 - 479 ) ÷ 479] x 100 = -46.76%
Formula
Percentage change = [(255 - 479) / 479] x 100
Subtract the new number by the original number
255 - 479 = -224
-224 ÷ 479 = -0.46764091858037576
-0.46764091858037576 x 100 = -46.76%