3142.86% is the change from 21 to 681
Calculation steps:
[( 681 - 21 ) ÷ 21] x 100 = 3142.86%
Formula
Percentage change = [(681 - 21) / 21] x 100
Subtract the new number by the original number
681 - 21 = 660
660 ÷ 21 = 31.428571428571427
31.428571428571427 x 100 = 3142.86%