Dispaly deflection angle in profile

I have to disply Horizontal IP deflection angle (DELTA)  in horizontal alignment of profile box

721,GC&MAST&0,LINE,I001,10=90

721,3=DELT,-76.

001,DELTA=&DELT&


I am getting deflection angle as 0 00 00.0 for all horizontal curve as shown.

Please assist to get the deflection angle in the profile

Regards

Devaraju