You can charge less per person when you have a group booking through Origin's Variable Pricing feature. For example, if you have a group of 2 people, you can charge less per person for that group.
To enable variable pricing:
1. Go to Listings
2. Click on the dollar icon next to the listing you want to do variable pricing.
3. Then you can price that trip however you want, like charging 2 people $400.
4. Click Next at the bottom of the page to save your changes.