86.33% is the change from 139 to 259
Calculation steps:
[( 259 - 139 ) ÷ 139] x 100 = 86.33%
Formula
Percentage change = [(259 - 139) / 139] x 100
Subtract the new number by the original number
259 - 139 = 120
120 ÷ 139 = 0.8633093525179856
0.8633093525179856 x 100 = 86.33%