-38.52% is the change from 418 to 257
Calculation steps:
[( 257 - 418 ) ÷ 418] x 100 = -38.52%
Formula
Percentage change = [(257 - 418) / 418] x 100
Subtract the new number by the original number
257 - 418 = -161
-161 ÷ 418 = -0.38516746411483255
-0.38516746411483255 x 100 = -38.52%