55.07% is the change from 138 to 214
Calculation steps:
[( 214 - 138 ) ÷ 138] x 100 = 55.07%
Formula
Percentage change = [(214 - 138) / 138] x 100
Subtract the new number by the original number
214 - 138 = 76
76 ÷ 138 = 0.5507246376811594
0.5507246376811594 x 100 = 55.07%