-50.16% is the change from 917 to 457
Calculation steps:
[( 457 - 917 ) ÷ 917] x 100 = -50.16%
Formula
Percentage change = [(457 - 917) / 917] x 100
Subtract the new number by the original number
457 - 917 = -460
-460 ÷ 917 = -0.5016357688113413
-0.5016357688113413 x 100 = -50.16%