2640% is the change from 20 to 548
Calculation steps:
[( 548 - 20 ) ÷ 20] x 100 = 2640%
Formula
Percentage change = [(548 - 20) / 20] x 100
Subtract the new number by the original number
548 - 20 = 528
528 ÷ 20 = 26.4
26.4 x 100 = 2640%
Example