2557.14% is the change from 21 to 558
Calculation steps:
[( 558 - 21 ) ÷ 21] x 100 = 2557.14%
Formula
Percentage change = [(558 - 21) / 21] x 100
Subtract the new number by the original number
558 - 21 = 537
537 ÷ 21 = 25.571428571428573
25.571428571428573 x 100 = 2557.14%