21275% is the change from 4 to 855
Calculation steps:
[( 855 - 4 ) ÷ 4] x 100 = 21275%
Formula
Percentage change = [(855 - 4) / 4] x 100
Subtract the new number by the original number
855 - 4 = 851
851 ÷ 4 = 212.75
212.75 x 100 = 21275%
Example