56.44% is the change from 450 to 704
Calculation steps:
[( 704 - 450 ) ÷ 450] x 100 = 56.44%
Formula
Percentage change = [(704 - 450) / 450] x 100
Subtract the new number by the original number
704 - 450 = 254
254 ÷ 450 = 0.5644444444444444
0.5644444444444444 x 100 = 56.44%