-40.1% is the change from 419 to 251
Calculation steps:
[( 251 - 419 ) ÷ 419] x 100 = -40.1%
Formula
Percentage change = [(251 - 419) / 419] x 100
Subtract the new number by the original number
251 - 419 = -168
-168 ÷ 419 = -0.4009546539379475
-0.4009546539379475 x 100 = -40.1%