2130% is the change from 20 to 446
Calculation steps:
[( 446 - 20 ) ÷ 20] x 100 = 2130%
Formula
Percentage change = [(446 - 20) / 20] x 100
Subtract the new number by the original number
446 - 20 = 426
426 ÷ 20 = 21.3
21.3 x 100 = 2130%
Example