-46.09% is the change from 473 to 255
Calculation steps:
[( 255 - 473 ) ÷ 473] x 100 = -46.09%
Formula
Percentage change = [(255 - 473) / 473] x 100
Subtract the new number by the original number
255 - 473 = -218
-218 ÷ 473 = -0.4608879492600423
-0.4608879492600423 x 100 = -46.09%