-50% is the change from 898 to 449
Calculation steps:
[( 449 - 898 ) ÷ 898] x 100 = -50%
Formula
Percentage change = [(449 - 898) / 898] x 100
Subtract the new number by the original number
449 - 898 = -449
-449 ÷ 898 = -0.5
-0.5 x 100 = -50%
Example