81.82% is the change from 429 to 780
Calculation steps:
[( 780 - 429 ) ÷ 429] x 100 = 81.82%
Formula
Percentage change = [(780 - 429) / 429] x 100
Subtract the new number by the original number
780 - 429 = 351
351 ÷ 429 = 0.8181818181818182
0.8181818181818182 x 100 = 81.82%