1960% is the change from 25 to 515
Calculation steps:
[( 515 - 25 ) ÷ 25] x 100 = 1960%
Formula
Percentage change = [(515 - 25) / 25] x 100
Subtract the new number by the original number
515 - 25 = 490
490 ÷ 25 = 19.6
19.6 x 100 = 1960%
Example