2060% is the change from 30 to 648
Calculation steps:
[( 648 - 30 ) ÷ 30] x 100 = 2060%
Formula
Percentage change = [(648 - 30) / 30] x 100
Subtract the new number by the original number
648 - 30 = 618
618 ÷ 30 = 20.6
20.6 x 100 = 2060%
Example