-38.18% is the change from 406 to 251
Calculation steps:
[( 251 - 406 ) ÷ 406] x 100 = -38.18%
Formula
Percentage change = [(251 - 406) / 406] x 100
Subtract the new number by the original number
251 - 406 = -155
-155 ÷ 406 = -0.3817733990147783
-0.3817733990147783 x 100 = -38.18%