Money
Prices and margin
What you pay, what you charge, and who decides.
Your cost
You buy at an agreed discount off Kili retail, and the Catalog & prices page shows the cost of every plan beside what it sells for. Specific plans can be fixed at a negotiated price; everything else uses your standing rate.
Your price
If your account is set to choose its own prices, what you set is what your customers pay on your storefront and at your counter. If it is not, customers pay Kili retail and your margin comes from the discount.
Note
Kili will not let a plan be sold below what it costs. It is the one rule that is not negotiable, in either direction, because a sale that loses money is worse than a sale that does not happen.