25400% is the change from 2 to 510
Calculation steps:
[( 510 - 2 ) ÷ 2] x 100 = 25400%
Formula
Percentage change = [(510 - 2) / 2] x 100
Subtract the new number by the original number
510 - 2 = 508
508 ÷ 2 = 254
254 x 100 = 25400%
Example