Single Conference License:
You are planning a single event that is expecting about 250 oral presenters.
Your total price will be: 500$ + 250 * 5$ = 1.750$
Multi Conference License:
You are planning four events this year that each is expecting about 300 oral presenters.
Your total number of presenters across all events over the course of a year is about 1200.
Your price (for one year) will be 2.990$ + 200 * 1$ = 3.190$
If you choose to renew your Multi Conference license for another year, unused presenter invitations will be transferred over to the next year and another 1000 will automatically be added to your pool of invites.