161.25% is the change from 80 to 209
Calculation steps:
[( 209 - 80 ) ÷ 80] x 100 = 161.25%
Formula
Percentage change = [(209 - 80) / 80] x 100
Subtract the new number by the original number
209 - 80 = 129
129 ÷ 80 = 1.6125
1.6125 x 100 = 161.25%
Example