4390% is the change from 10 to 449
Calculation steps:
[( 449 - 10 ) ÷ 10] x 100 = 4390%
Formula
Percentage change = [(449 - 10) / 10] x 100
Subtract the new number by the original number
449 - 10 = 439
439 ÷ 10 = 43.9
43.9 x 100 = 4390%
Example