175% is the change from 80 to 220
Calculation steps:
[( 220 - 80 ) ÷ 80] x 100 = 175%
Formula
Percentage change = [(220 - 80) / 80] x 100
Subtract the new number by the original number
220 - 80 = 140
140 ÷ 80 = 1.75
1.75 x 100 = 175%
Example