I will say this though! As a baseline, start with nothing less then 12 dollars for one dog. I see pooper scoopers who charge say 9.99 for one dog and that is not a serious price or even CHEAPER. Remember there is a logic to this - If you price too low, people will ask - WHY? - If you price to high, people will ask why- But you as a business owner you shouldn't charge based on how people will feel ABOUT YOU - which is a huge mistake in this business. People care about how they will be perceived if they say charge 15 for one dog which i do or even 16 dollars but you have expenses such as gas,insurance,equipment and just your wages. Given today's costs I personally and this is my opinion only Id charge nothing less than 15 for one dog.
This also depends on your competition. If your charging $15.00 and your competition is $11.00 then people may wonder why you are so high.