-97.55% is the change from 449 to 11
Calculation steps:
[( 11 - 449 ) ÷ 449] x 100 = -97.55%
Formula
Percentage change = [(11 - 449) / 449] x 100
Subtract the new number by the original number
11 - 449 = -438
-438 ÷ 449 = -0.9755011135857461
-0.9755011135857461 x 100 = -97.55%