-40.88% is the change from 433 to 256
Calculation steps:
[( 256 - 433 ) ÷ 433] x 100 = -40.88%
Formula
Percentage change = [(256 - 433) / 433] x 100
Subtract the new number by the original number
256 - 433 = -177
-177 ÷ 433 = -0.40877598152424943
-0.40877598152424943 x 100 = -40.88%