-39.81% is the change from 417 to 251
Calculation steps:
[( 251 - 417 ) ÷ 417] x 100 = -39.81%
Formula
Percentage change = [(251 - 417) / 417] x 100
Subtract the new number by the original number
251 - 417 = -166
-166 ÷ 417 = -0.3980815347721823
-0.3980815347721823 x 100 = -39.81%