41850% is the change from 2 to 839
Calculation steps:
[( 839 - 2 ) ÷ 2] x 100 = 41850%
Formula
Percentage change = [(839 - 2) / 2] x 100
Subtract the new number by the original number
839 - 2 = 837
837 ÷ 2 = 418.5
418.5 x 100 = 41850%
Example