2271.43% is the change from 28 to 664
Calculation steps:
[( 664 - 28 ) ÷ 28] x 100 = 2271.43%
Formula
Percentage change = [(664 - 28) / 28] x 100
Subtract the new number by the original number
664 - 28 = 636
636 ÷ 28 = 22.714285714285715
22.714285714285715 x 100 = 2271.43%