-40.51% is the change from 432 to 257
Calculation steps:
[( 257 - 432 ) ÷ 432] x 100 = -40.51%
Formula
Percentage change = [(257 - 432) / 432] x 100
Subtract the new number by the original number
257 - 432 = -175
-175 ÷ 432 = -0.4050925925925926
-0.4050925925925926 x 100 = -40.51%