239.22% is the change from 51 to 173
Calculation steps:
[( 173 - 51 ) ÷ 51] x 100 = 239.22%
Formula
Percentage change = [(173 - 51) / 51] x 100
Subtract the new number by the original number
173 - 51 = 122
122 ÷ 51 = 2.392156862745098
2.392156862745098 x 100 = 239.22%