70.68% is the change from 457 to 780
Calculation steps:
[( 780 - 457 ) ÷ 457] x 100 = 70.68%
Formula
Percentage change = [(780 - 457) / 457] x 100
Subtract the new number by the original number
780 - 457 = 323
323 ÷ 457 = 0.7067833698030634
0.7067833698030634 x 100 = 70.68%