2525% is the change from 20 to 525
Calculation steps:
[( 525 - 20 ) ÷ 20] x 100 = 2525%
Formula
Percentage change = [(525 - 20) / 20] x 100
Subtract the new number by the original number
525 - 20 = 505
505 ÷ 20 = 25.25
25.25 x 100 = 2525%
Example