42050% is the change from 2 to 843
Calculation steps:
[( 843 - 2 ) ÷ 2] x 100 = 42050%
Formula
Percentage change = [(843 - 2) / 2] x 100
Subtract the new number by the original number
843 - 2 = 841
841 ÷ 2 = 420.5
420.5 x 100 = 42050%
Example