212% is the change from 250 to 780
Calculation steps:
[( 780 - 250 ) ÷ 250] x 100 = 212%
Formula
Percentage change = [(780 - 250) / 250] x 100
Subtract the new number by the original number
780 - 250 = 530
530 ÷ 250 = 2.12
2.12 x 100 = 212%
Example