-49.5% is the change from 905 to 457
Calculation steps:
[( 457 - 905 ) ÷ 905] x 100 = -49.5%
Formula
Percentage change = [(457 - 905) / 905] x 100
Subtract the new number by the original number
457 - 905 = -448
-448 ÷ 905 = -0.4950276243093923
-0.4950276243093923 x 100 = -49.5%