-49.89% is the change from 912 to 457
Calculation steps:
[( 457 - 912 ) ÷ 912] x 100 = -49.89%
Formula
Percentage change = [(457 - 912) / 912] x 100
Subtract the new number by the original number
457 - 912 = -455
-455 ÷ 912 = -0.49890350877192985
-0.49890350877192985 x 100 = -49.89%