At Holidog, we let you adjust your rates, so it is up to you to decide how much you would like to charge for this service. To find where you can change this, log in to your account, then click on the "Settings" icon (the second icon down on the left of your screen). Then click on "My Profile" on the GoWalk category you will be able to modify the price you charge.
If you have any difficulties finding it, just click on the link below:
You should be faced with this page. Here you can input what you would like to charge.