4.62% is the change from 173 to 181
Calculation steps:
[( 181 - 173 ) ÷ 173] x 100 = 4.62%
Formula
Percentage change = [(181 - 173) / 173] x 100
Subtract the new number by the original number
181 - 173 = 8
8 ÷ 173 = 0.046242774566473986
0.046242774566473986 x 100 = 4.62%