25950% is the change from 2 to 521
Calculation steps:
[( 521 - 2 ) ÷ 2] x 100 = 25950%
Formula
Percentage change = [(521 - 2) / 2] x 100
Subtract the new number by the original number
521 - 2 = 519
519 ÷ 2 = 259.5
259.5 x 100 = 25950%
Example