34.78% is the change from 138 to 186
Calculation steps:
[( 186 - 138 ) ÷ 138] x 100 = 34.78%
Formula
Percentage change = [(186 - 138) / 138] x 100
Subtract the new number by the original number
186 - 138 = 48
48 ÷ 138 = 0.34782608695652173
0.34782608695652173 x 100 = 34.78%