2750% is the change from 28 to 798
Calculation steps:
[( 798 - 28 ) ÷ 28] x 100 = 2750%
Formula
Percentage change = [(798 - 28) / 28] x 100
Subtract the new number by the original number
798 - 28 = 770
770 ÷ 28 = 27.5
27.5 x 100 = 2750%
Example