2300% is the change from 27 to 648
Calculation steps:
[( 648 - 27 ) ÷ 27] x 100 = 2300%
Formula
Percentage change = [(648 - 27) / 27] x 100
Subtract the new number by the original number
648 - 27 = 621
621 ÷ 27 = 23
23 x 100 = 2300%
Example