31400% is the change from 2 to 630
Calculation steps:
[( 630 - 2 ) ÷ 2] x 100 = 31400%
Formula
Percentage change = [(630 - 2) / 2] x 100
Subtract the new number by the original number
630 - 2 = 628
628 ÷ 2 = 314
314 x 100 = 31400%
Example