81.5% is the change from 173 to 314
Calculation steps:
[( 314 - 173 ) ÷ 173] x 100 = 81.5%
Formula
Percentage change = [(314 - 173) / 173] x 100
Subtract the new number by the original number
314 - 173 = 141
141 ÷ 173 = 0.815028901734104
0.815028901734104 x 100 = 81.5%