3795.24% is the change from 21 to 818
Calculation steps:
[( 818 - 21 ) ÷ 21] x 100 = 3795.24%
Formula
Percentage change = [(818 - 21) / 21] x 100
Subtract the new number by the original number
818 - 21 = 797
797 ÷ 21 = 37.95238095238095
37.95238095238095 x 100 = 3795.24%