44% is the change from 450 to 648
Calculation steps:
[( 648 - 450 ) ÷ 450] x 100 = 44%
Formula
Percentage change = [(648 - 450) / 450] x 100
Subtract the new number by the original number
648 - 450 = 198
198 ÷ 450 = 0.44
0.44 x 100 = 44%
Example