897.78% is the change from 45 to 449
Calculation steps:
[( 449 - 45 ) ÷ 45] x 100 = 897.78%
Formula
Percentage change = [(449 - 45) / 45] x 100
Subtract the new number by the original number
449 - 45 = 404
404 ÷ 45 = 8.977777777777778
8.977777777777778 x 100 = 897.78%