74.75% is the change from 99 to 173
Calculation steps:
[( 173 - 99 ) ÷ 99] x 100 = 74.75%
Formula
Percentage change = [(173 - 99) / 99] x 100
Subtract the new number by the original number
173 - 99 = 74
74 ÷ 99 = 0.7474747474747475
0.7474747474747475 x 100 = 74.75%