transmission more than 100%

dear all
I have learnt the taper design on your website as show below

in taper.lms (513.0 KB)
I found the value of the transmission got from monitor T is larger than 1.I can not understand why the transmission is larger than 1.can anyone help me solve the question?Thanks a lot.

Hi @jbwei
After you run the simulation.
Select “expansion” and go to the “result view”.
Click right and click calculate.
Then select “Model” and click right .After that click “Run analysis”
Transmission will be appeared in “Result view”