2109.52% is the change from 21 to 464
Calculation steps:
[( 464 - 21 ) ÷ 21] x 100 = 2109.52%
Formula
Percentage change = [(464 - 21) / 21] x 100
Subtract the new number by the original number
464 - 21 = 443
443 ÷ 21 = 21.095238095238095
21.095238095238095 x 100 = 2109.52%