122.14% is the change from 140 to 311
Calculation steps:
[( 311 - 140 ) ÷ 140] x 100 = 122.14%
Formula
Percentage change = [(311 - 140) / 140] x 100
Subtract the new number by the original number
311 - 140 = 171
171 ÷ 140 = 1.2214285714285715
1.2214285714285715 x 100 = 122.14%