86.96% is the change from 138 to 258
Calculation steps:
[( 258 - 138 ) ÷ 138] x 100 = 86.96%
Formula
Percentage change = [(258 - 138) / 138] x 100
Subtract the new number by the original number
258 - 138 = 120
120 ÷ 138 = 0.8695652173913043
0.8695652173913043 x 100 = 86.96%