4290.48% is the change from 21 to 922
Calculation steps:
[( 922 - 21 ) ÷ 21] x 100 = 4290.48%
Formula
Percentage change = [(922 - 21) / 21] x 100
Subtract the new number by the original number
922 - 21 = 901
901 ÷ 21 = 42.904761904761905
42.904761904761905 x 100 = 4290.48%