Labels with pulldata() in a select_multiple

Hello everybody my name is Asia and i am very happy to have the possibility to write here.
I am trying to design a survey that asks the user to select multiple commodities and then asks the price for the selected commodities.
My choices list comes from a search function while i want to access labels using the pulldata function. The problem is the Calculate field: if i have a select_one in the previous question the calculation works fine, if i have a select_multiple it doesn't.

Your kind support is appreciated

Hi @asia_jenny_lee
Welcome to the ODK forum. We're glad you're here. When you get a chance, please introduce yourself on this forum thread. I'd also encourage you to add a picture as your avatar because it helps build community!

Could you attach your form (xls + csv files) so that we can take a look?