449% is the change from 100 to 549
Calculation steps:
[( 549 - 100 ) ÷ 100] x 100 = 449%
Formula
Percentage change = [(549 - 100) / 100] x 100
Subtract the new number by the original number
549 - 100 = 449
449 ÷ 100 = 4.49
4.49 x 100 = 449%
Example