80.81% is the change from 99 to 179
Calculation steps:
[( 179 - 99 ) ÷ 99] x 100 = 80.81%
Formula
Percentage change = [(179 - 99) / 99] x 100
Subtract the new number by the original number
179 - 99 = 80
80 ÷ 99 = 0.8080808080808081
0.8080808080808081 x 100 = 80.81%