-45.88% is the change from 473 to 256
Calculation steps:
[( 256 - 473 ) ÷ 473] x 100 = -45.88%
Formula
Percentage change = [(256 - 473) / 473] x 100
Subtract the new number by the original number
256 - 473 = -217
-217 ÷ 473 = -0.4587737843551797
-0.4587737843551797 x 100 = -45.88%