To add a new user with unlimited license for a year costs $400 per person. This will provide an unlimited access to the entire Coursera for Business course catalog for 12 months.
As an admin, you can also add seats in the middle of your contract. The amount you pay will be prorated daily, but only up to 6 months into the contract. This means that if you add a new seat from months 0-6 of your contract, you will pay for the remaining time only. However, if you add a seat past the 6 month mark (6-12 months), you will have to pay for a full 6-month of access even though you have less than 6 months left into their contract. This is a restriction that comes from our university partners and we are not able to waive it at this time.