2150% is the change from 28 to 630
Calculation steps:
[( 630 - 28 ) ÷ 28] x 100 = 2150%
Formula
Percentage change = [(630 - 28) / 28] x 100
Subtract the new number by the original number
630 - 28 = 602
602 ÷ 28 = 21.5
21.5 x 100 = 2150%
Example