Okay kiddo, let me explain what turnover means in the context of food!
Imagine you have a bakery that makes yummy pies. You have a certain number of pies on display each day, but not all of them are going to be sold by the end of the day.
So, in order to make sure you are always offering fresh pies, you use something called turnover. This means you remove the unsold pies from the display and replace them with new, freshly made ones.
Basically, turnover is the process of removing old or unsold food and replacing it with fresh options. It ensures that customers always have access to the freshest food possible.
Does that make sense, little one?