22400% is the change from 2 to 450
Calculation steps:
[( 450 - 2 ) ÷ 2] x 100 = 22400%
Formula
Percentage change = [(450 - 2) / 2] x 100
Subtract the new number by the original number
450 - 2 = 448
448 ÷ 2 = 224
224 x 100 = 22400%
Example