-1.1% is the change from 181 to 179
Calculation steps:
[( 179 - 181 ) ÷ 181] x 100 = -1.1%
Formula
Percentage change = [(179 - 181) / 181] x 100
Subtract the new number by the original number
179 - 181 = -2
-2 ÷ 181 = -0.011049723756906077
-0.011049723756906077 x 100 = -1.1%