Rover only shows a per day rate. I wish to also show that I charge more for daycare on weekends and holidays. It states something like "add when you complete sitter profile." Can't figure it out.
Go to Profile - then Rates - then Additional Rates. There, you can enter the holiday rate.
There isn't anything set up for different rates according to the day of week (such as Sat./Sun.). You'd have to mention that in your profile to help prevent some misunderstanding, likely mention again in messages before m&g and/or at m&g, then prepare a custom quote.
But don't be surprised if they don't read your profile. Be sure and mention the higher rates in your first message to the potential client and again at the M&G.
I would list your fee schedule in the body of your profile so your clients have an idea of the rate before making a request and so you have something to refer back to when making rate adjustments.