77.71% is the change from 175 to 311
Calculation steps:
[( 311 - 175 ) ÷ 175] x 100 = 77.71%
Formula
Percentage change = [(311 - 175) / 175] x 100
Subtract the new number by the original number
311 - 175 = 136
136 ÷ 175 = 0.7771428571428571
0.7771428571428571 x 100 = 77.71%