-87.75% is the change from 449 to 55
Calculation steps:
[( 55 - 449 ) ÷ 449] x 100 = -87.75%
Formula
Percentage change = [(55 - 449) / 449] x 100
Subtract the new number by the original number
55 - 449 = -394
-394 ÷ 449 = -0.8775055679287305
-0.8775055679287305 x 100 = -87.75%