-47.31% is the change from 484 to 255
Calculation steps:
[( 255 - 484 ) ÷ 484] x 100 = -47.31%
Formula
Percentage change = [(255 - 484) / 484] x 100
Subtract the new number by the original number
255 - 484 = -229
-229 ÷ 484 = -0.4731404958677686
-0.4731404958677686 x 100 = -47.31%