3861.9% is the change from 21 to 832
Calculation steps:
[( 832 - 21 ) ÷ 21] x 100 = 3861.9%
Formula
Percentage change = [(832 - 21) / 21] x 100
Subtract the new number by the original number
832 - 21 = 811
811 ÷ 21 = 38.61904761904762
38.61904761904762 x 100 = 3861.9%