2690% is the change from 20 to 558
Calculation steps:
[( 558 - 20 ) ÷ 20] x 100 = 2690%
Formula
Percentage change = [(558 - 20) / 20] x 100
Subtract the new number by the original number
558 - 20 = 538
538 ÷ 20 = 26.9
26.9 x 100 = 2690%
Example