2019.05% is the change from 21 to 445
Calculation steps:
[( 445 - 21 ) ÷ 21] x 100 = 2019.05%
Formula
Percentage change = [(445 - 21) / 21] x 100
Subtract the new number by the original number
445 - 21 = 424
424 ÷ 21 = 20.19047619047619
20.19047619047619 x 100 = 2019.05%