83.63% is the change from 171 to 314
Calculation steps:
[( 314 - 171 ) ÷ 171] x 100 = 83.63%
Formula
Percentage change = [(314 - 171) / 171] x 100
Subtract the new number by the original number
314 - 171 = 143
143 ÷ 171 = 0.8362573099415205
0.8362573099415205 x 100 = 83.63%