180% is the change from 25 to 70
Calculation steps:
[( 70 - 25 ) ÷ 25] x 100 = 180%
Formula
Percentage change = [(70 - 25) / 25] x 100
Subtract the new number by the original number
70 - 25 = 45
45 ÷ 25 = 1.8
1.8 x 100 = 180%
Example