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.
Here, the customary amount to tip on a food delivery is only 10%, so tipping $2 on a $20 order makes sense... but it really sucks to jump in your car and drive like a madman trying to get a pizza out so you can make $2. For me and the guys I worked with, we were happiest for a $5 tip on orders up to $50.