138.24% is the change from 102 to 243
Calculation steps:
[( 243 - 102 ) ÷ 102] x 100 = 138.24%
Formula
Percentage change = [(243 - 102) / 102] x 100
Subtract the new number by the original number
243 - 102 = 141
141 ÷ 102 = 1.3823529411764706
1.3823529411764706 x 100 = 138.24%