25350% is the change from 2 to 509
Calculation steps:
[( 509 - 2 ) ÷ 2] x 100 = 25350%
Formula
Percentage change = [(509 - 2) / 2] x 100
Subtract the new number by the original number
509 - 2 = 507
507 ÷ 2 = 253.5
253.5 x 100 = 25350%
Example