-46.99% is the change from 481 to 255
Calculation steps:
[( 255 - 481 ) ÷ 481] x 100 = -46.99%
Formula
Percentage change = [(255 - 481) / 481] x 100
Subtract the new number by the original number
255 - 481 = -226
-226 ÷ 481 = -0.4698544698544699
-0.4698544698544699 x 100 = -46.99%