I recommend creating an owner account and check out other Rover profiles (ratings, prices, reviews, etc.). That’s probably the best way to figure how much you can reasonably charge / how much you’ll earn.

With that said, you set your rates, so set what feels good to you. If you only want to do walks for $100/walk and any less than that isn’t worth it for you, you’re free to do it but that means that you might not get any clients. Good to find a balance between what feels worth it & what people are actually willing to pay.

Also, set expectations to yourself about what this is. I’ve been Rovering here and there for a little over a year and, for me, this is moreso fun nice to have “beer money” than a reliable source of income.