2110% is the change from 20 to 442
Calculation steps:
[( 442 - 20 ) ÷ 20] x 100 = 2110%
Formula
Percentage change = [(442 - 20) / 20] x 100
Subtract the new number by the original number
442 - 20 = 422
422 ÷ 20 = 21.1
21.1 x 100 = 2110%
Example