The obverse legend, like other French coins, gives the kingâs title as Francorum Rex ( King of the Franks  in Latin) and provides another reason to call the coin a franc. Its value was set as one livre tournois (a money of account).
Favor has a no-tipping policy from company to restauraunt, so those waitstaff that take your order pay out the kitchen (they have to pay out a certain percentage of their total sales) for you to not tip. They pay the kitchen to make these orders and make no money, unless you tip out of pocket.
Now, to answer your question. For the chains, the delivery charge does not go to the driver, in any amount. This is not to say the driver is or is not paid a minimum wage, just that, according to the web sites, the delivery charge is not meant as a tip for the driver, at all.