-46.78% is the change from 481 to 256
Calculation steps:
[( 256 - 481 ) ÷ 481] x 100 = -46.78%
Formula
Percentage change = [(256 - 481) / 481] x 100
Subtract the new number by the original number
256 - 481 = -225
-225 ÷ 481 = -0.4677754677754678
-0.4677754677754678 x 100 = -46.78%