@Tricia4, @Alan30, there are a number of excellent links to essential information in the Community Help Guides thread that's stickied at the top of the page here (General Hosting).
I strongly recommend you become familiar with them. It will make the hosting experience much smoother.
This one covers how fees are charged.
https://community.airbnb.com/t5/Tips-Tricks/A-Breakdown-of-Airbnb-Guest-Fees-A-Community-Help-Guide/...
The ABB service fee ranges from 6-12%, which is charged to the guest.
You set your own nightly fee (e.g. $75).
(Perhaps you've also included a cleaning fee.)
AirBnB charges a small host fee (e.g. 3%) which is deducted from that.
So yes, it seems that if you wanted to have a full $75 in your hand, you would need to add the host service fee to the price.
The fees are laid out clearly in the guest's itinerary, which you receive once a booking is confirmed.
And here's another informative thread.
https://community.airbnb.com/t5/Tips-Tricks/How-Much-Does-a-Guest-Pay-A-Community-Help-Guide/m-p/246...