176.25% is the change from 80 to 221
Calculation steps:
[( 221 - 80 ) ÷ 80] x 100 = 176.25%
Formula
Percentage change = [(221 - 80) / 80] x 100
Subtract the new number by the original number
221 - 80 = 141
141 ÷ 80 = 1.7625
1.7625 x 100 = 176.25%
Example