2700% is the change from 21 to 588
Calculation steps:
[( 588 - 21 ) ÷ 21] x 100 = 2700%
Formula
Percentage change = [(588 - 21) / 21] x 100
Subtract the new number by the original number
588 - 21 = 567
567 ÷ 21 = 27
27 x 100 = 2700%
Example