Working out syns for meat free food

[Latte]

Do meat free burgers etc have a free food allowance please ?
Also what about quorn is that just put as normal through the calculator or does it have an allowance.
I saw some new meat free products in Tescos tonight and I wondered how I would work out the syns.
I don't understand how some veg burgers can be so low and some high, or how they are worked out.
Thank you

 

[ermintrude]

When you go into the calculator, where it asks you if there is any free food included select "Vegetarian products" - then whether it is "meat alternative, dried" or "meat alternative, raw" (Quorn is the latter)