In addition, even if the bathroom is located in the center of the store, some measures can be taken to alleviate its adverse effects. For example, you can ensure that the bathroom door is not facing the main entrance, put green plants around the bathroom, or put some items on both sides of the bathroom door to block the bad airflow.
Generally speaking, if there is a bathroom in the middle of the shop, it is best to consult a professional Feng Shui master or interior designer to understand the possible impact and take appropriate measures to alleviate it.