82.24% is the change from 428 to 780
Calculation steps:
[( 780 - 428 ) ÷ 428] x 100 = 82.24%
Formula
Percentage change = [(780 - 428) / 428] x 100
Subtract the new number by the original number
780 - 428 = 352
352 ÷ 428 = 0.822429906542056
0.822429906542056 x 100 = 82.24%