-50.27% is the change from 919 to 457
Calculation steps:
[( 457 - 919 ) ÷ 919] x 100 = -50.27%
Formula
Percentage change = [(457 - 919) / 919] x 100
Subtract the new number by the original number
457 - 919 = -462
-462 ÷ 919 = -0.5027203482045702
-0.5027203482045702 x 100 = -50.27%