Need help - I can't mention the values in a graph

Hey everyone,

I know it will probably sound basic to you, but I'm trying to do an analyse for work and I can't find where to add the values on my graphs.

For example, I'm trying to do a pie chart. Everything works well, but I don't have the values...

Does someone knows how? I searched on google before, I may asked wrong but I can't find the help I need.

Thank you so much.