39400% is the change from 2 to 790
Calculation steps:
[( 790 - 2 ) ÷ 2] x 100 = 39400%
Formula
Percentage change = [(790 - 2) / 2] x 100
Subtract the new number by the original number
790 - 2 = 788
788 ÷ 2 = 394
394 x 100 = 39400%
Example