10.4% is the change from 173 to 191
Calculation steps:
[( 191 - 173 ) ÷ 173] x 100 = 10.4%
Formula
Percentage change = [(191 - 173) / 173] x 100
Subtract the new number by the original number
191 - 173 = 18
18 ÷ 173 = 0.10404624277456648
0.10404624277456648 x 100 = 10.4%