He wants a full silver

“I think … yes, I’m going to have to charge you a silver for loaning my cart.” Miller finally says.

“A full silver!” You blurt out. “Isn’t that much?”

“In and of itself, yes, it is. But when you add all the costs it is actually a pretty fair deal.”

You cross your arms in front of your chest and ask “Which costs?”

Miller raises a single finger and replies, “Time. I was intending to leave for Gerlangen to buy now supplies this morning, but if you have need of my cart for half a day it will be far too late for me to hit the road.”
Then Miller raises another finger and says “Hence, that means I will have to buy a room at the inn and spend the night, which will cost me some coin as well.”

“Three, you also have to make a profit.” You add to his list.

Miller shrugs and says “I’m a merchant. I got to make a living, don’t I?”

You roll your eyes and open the purse you took off Murt’s body. “Fine, here’s your silver.”
Once the coin has entered Miller’s palm, he smiles and says “Excellent. I’ll release my horse and bring him to the stables, then help you strap your beauty onto the cart.”

Once the horses have been switched, you waved Miller a pleasant goodbye and are once again on your way.