1660% is the change from 25 to 440
Calculation steps:
[( 440 - 25 ) ÷ 25] x 100 = 1660%
Formula
Percentage change = [(440 - 25) / 25] x 100
Subtract the new number by the original number
440 - 25 = 415
415 ÷ 25 = 16.6
16.6 x 100 = 1660%
Example