72.26% is the change from 447 to 770
Calculation steps:
[( 770 - 447 ) ÷ 447] x 100 = 72.26%
Formula
Percentage change = [(770 - 447) / 447] x 100
Subtract the new number by the original number
770 - 447 = 323
323 ÷ 447 = 0.7225950782997763
0.7225950782997763 x 100 = 72.26%