444.44% is the change from 90 to 490
Calculation steps:
[( 490 - 90 ) ÷ 90] x 100 = 444.44%
Formula
Percentage change = [(490 - 90) / 90] x 100
Subtract the new number by the original number
490 - 90 = 400
400 ÷ 90 = 4.444444444444445
4.444444444444445 x 100 = 444.44%