39850% is the change from 2 to 799
Calculation steps:
[( 799 - 2 ) ÷ 2] x 100 = 39850%
Formula
Percentage change = [(799 - 2) / 2] x 100
Subtract the new number by the original number
799 - 2 = 797
797 ÷ 2 = 398.5
398.5 x 100 = 39850%
Example