Filtering by trand and share

[edbort]

Hi guys,

I've started working with Qlik Sense some months ago and I need I little help.

Searching on google and foruns I didn't find a properly answser.

I would like to show in a grid products with a tendency to fall in sales and which have the largest shares.

My sales table has Date, Product and Sales fields.

Linest_m and linest_B are the correct functions to use in this case? If so, how to use it?

Thanks