3395% is the change from 20 to 699
Calculation steps:
[( 699 - 20 ) ÷ 20] x 100 = 3395%
Formula
Percentage change = [(699 - 20) / 20] x 100
Subtract the new number by the original number
699 - 20 = 679
679 ÷ 20 = 33.95
33.95 x 100 = 3395%
Example