12400% is the change from 2 to 250
Calculation steps:
[( 250 - 2 ) ÷ 2] x 100 = 12400%
Formula
Percentage change = [(250 - 2) / 2] x 100
Subtract the new number by the original number
250 - 2 = 248
248 ÷ 2 = 124
124 x 100 = 12400%
Example