225% is the change from 80 to 260
Calculation steps:
[( 260 - 80 ) ÷ 80] x 100 = 225%
Formula
Percentage change = [(260 - 80) / 80] x 100
Subtract the new number by the original number
260 - 80 = 180
180 ÷ 80 = 2.25
2.25 x 100 = 225%
Example