2113.33% is the change from 30 to 664
Calculation steps:
[( 664 - 30 ) ÷ 30] x 100 = 2113.33%
Formula
Percentage change = [(664 - 30) / 30] x 100
Subtract the new number by the original number
664 - 30 = 634
634 ÷ 30 = 21.133333333333333
21.133333333333333 x 100 = 2113.33%