-51.14% is the change from 919 to 449
Calculation steps:
[( 449 - 919 ) ÷ 919] x 100 = -51.14%
Formula
Percentage change = [(449 - 919) / 919] x 100
Subtract the new number by the original number
449 - 919 = -470
-470 ÷ 919 = -0.5114254624591947
-0.5114254624591947 x 100 = -51.14%