72.78% is the change from 180 to 311
Calculation steps:
[( 311 - 180 ) ÷ 180] x 100 = 72.78%
Formula
Percentage change = [(311 - 180) / 180] x 100
Subtract the new number by the original number
311 - 180 = 131
131 ÷ 180 = 0.7277777777777777
0.7277777777777777 x 100 = 72.78%