139.22% is the change from 51 to 122
Calculation steps:
[( 122 - 51 ) ÷ 51] x 100 = 139.22%
Formula
Percentage change = [(122 - 51) / 51] x 100
Subtract the new number by the original number
122 - 51 = 71
71 ÷ 51 = 1.392156862745098
1.392156862745098 x 100 = 139.22%