2230% is the change from 30 to 699
Calculation steps:
[( 699 - 30 ) ÷ 30] x 100 = 2230%
Formula
Percentage change = [(699 - 30) / 30] x 100
Subtract the new number by the original number
699 - 30 = 669
669 ÷ 30 = 22.3
22.3 x 100 = 2230%
Example