2842.86% is the change from 21 to 618
Calculation steps:
[( 618 - 21 ) ÷ 21] x 100 = 2842.86%
Formula
Percentage change = [(618 - 21) / 21] x 100
Subtract the new number by the original number
618 - 21 = 597
597 ÷ 21 = 28.428571428571427
28.428571428571427 x 100 = 2842.86%