Zero dollars.  In order for a challenge to go forward, we need 50 enrollments- otherwise costs are too high.  If 50 enrollments aren't reached, we can extend time for enrollment or cancel and refund enrollees.
Painless, and risk-free.

Our tiered structure is 20-40% of net profit.

That's up to you.  We do all of the hard work- all that's left to do is reach out and bring in participants.  All tools are created specifically for your event, and turnaround can happen as quickly as 24 hours so you can hit the ground running!

We are not a non-profit organization.  We're a for-profit that aids charitable groups and individuals.
Aside from general costs of business, each event receives custom medal design, custom marketing materials, customer and participant support, we cover all upfront costs and provide a portal for event tickets, a group forum on our website for each event, engrave, package, ship, etc.
The net costs we calculate are only medal production cost and shipping.  But there are fees that we absorb in order to provide a large percentage back to the organization.  Cost itemizations are provided to the contact organizing the event with us.