72.89% is the change from 450 to 778
Calculation steps:
[( 778 - 450 ) ÷ 450] x 100 = 72.89%
Formula
Percentage change = [(778 - 450) / 450] x 100
Subtract the new number by the original number
778 - 450 = 328
328 ÷ 450 = 0.7288888888888889
0.7288888888888889 x 100 = 72.89%