15.7% is the change from 121 to 140
Calculation steps:
[( 140 - 121 ) ÷ 121] x 100 = 15.7%
Formula
Percentage change = [(140 - 121) / 121] x 100
Subtract the new number by the original number
140 - 121 = 19
19 ÷ 121 = 0.15702479338842976
0.15702479338842976 x 100 = 15.7%