306.25% is the change from 192 to 780
Calculation steps:
[( 780 - 192 ) ÷ 192] x 100 = 306.25%
Formula
Percentage change = [(780 - 192) / 192] x 100
Subtract the new number by the original number
780 - 192 = 588
588 ÷ 192 = 3.0625
3.0625 x 100 = 306.25%