2510% is the change from 20 to 522
Calculation steps:
[( 522 - 20 ) ÷ 20] x 100 = 2510%
Formula
Percentage change = [(522 - 20) / 20] x 100
Subtract the new number by the original number
522 - 20 = 502
502 ÷ 20 = 25.1
25.1 x 100 = 2510%
Example