-38.61% is the change from 417 to 256
Calculation steps:
[( 256 - 417 ) ÷ 417] x 100 = -38.61%
Formula
Percentage change = [(256 - 417) / 417] x 100
Subtract the new number by the original number
256 - 417 = -161
-161 ÷ 417 = -0.38609112709832133
-0.38609112709832133 x 100 = -38.61%