-98% is the change from 449 to 9
Calculation steps:
[( 9 - 449 ) ÷ 449] x 100 = -98%
Formula
Percentage change = [(9 - 449) / 449] x 100
Subtract the new number by the original number
9 - 449 = -440
-440 ÷ 449 = -0.9799554565701559
-0.9799554565701559 x 100 = -98%