121.78% is the change from 450 to 998
Calculation steps:
[( 998 - 450 ) ÷ 450] x 100 = 121.78%
Formula
Percentage change = [(998 - 450) / 450] x 100
Subtract the new number by the original number
998 - 450 = 548
548 ÷ 450 = 1.2177777777777778
1.2177777777777778 x 100 = 121.78%