2009.52% is the change from 21 to 443
Calculation steps:
[( 443 - 21 ) ÷ 21] x 100 = 2009.52%
Formula
Percentage change = [(443 - 21) / 21] x 100
Subtract the new number by the original number
443 - 21 = 422
422 ÷ 21 = 20.095238095238095
20.095238095238095 x 100 = 2009.52%