2175% is the change from 28 to 637
Calculation steps:
[( 637 - 28 ) ÷ 28] x 100 = 2175%
Formula
Percentage change = [(637 - 28) / 28] x 100
Subtract the new number by the original number
637 - 28 = 609
609 ÷ 28 = 21.75
21.75 x 100 = 2175%
Example