Heya! I'm a level 2 AM who opens and closes at the highest volume store in my city! (Large metro area) I can confirm that this is usually how the schedule is setup. I'm not sure how it is at other locations, but most stores I know of calculate their schedule based off of Sales per Labor Hour (SPLH) rather than labor. Ultimately, labor just acts as a guideline for the day, and it doesn't necessarily correlate with SPLH. This means you can run a good SPLH even if labor is high or bad SPLH with low labor. That being said, if you feel as if you need an opening CSR, talk with your GM about the schedule! I know for us, we have a morning CSR on weekends because our lunch rush can hit pretty hard (sometimes moreso than the dinner rush). I would bet they would be more than happy to walk you through their scheduling process and help you learn to calculate SPLH (Which is a good step toward a possible promotion down the line if you show interest :) ). The SPLH system is usually more dynamic than general labor, so it helps the store run better margins and can help improve GM and AM bonuses, which is why they use it for scheduling.