4214.29% is the change from 21 to 906
Calculation steps:
[( 906 - 21 ) ÷ 21] x 100 = 4214.29%
Formula
Percentage change = [(906 - 21) / 21] x 100
Subtract the new number by the original number
906 - 21 = 885
885 ÷ 21 = 42.142857142857146
42.142857142857146 x 100 = 4214.29%