Hello, I have a complex problem i would like to get some help solving, I will explain as much as I can what the problems are, and I also included the project at the bottom of the post.
I have a table where each row is an item sale with a price and a stock value couting down for each sale.
What i want to do is to show a stock value ("stock after sales" with last date and time * "price") sorted by category in one table and by date in another. I'm trying to solve this by using DAX, but I cant seem to get the formulas correct when selecting only items with latest date and time per item.
The stock value should sum the stock for each item based on selected month, but should also include items sold before the selected month (item 1 was not sold in january but should still be calculated if that month is selected).
I have one table with sales and one with each uniqe item with categories with relation om itemID:
| ItemID | Date | Time | stock after sales | Price |
| 1 | 2016-12-01 | 08:45:20 | 20 | 100 |
| 2 | 2016-12-02 | 10:15:55 | 5 | 200 |
| 3 | 2016-12-02 | 12:10:10 | 8 | 300 |
| 1 | 2016-12-03 | 10:38:53 | 19 | 100 |
| 4 | 2017-01-01 | 09:45:20 | 10 | 400 |
| 3 | 2017-01-01 | 10:20:55 | 7 | 300 |
| 6 | 2017-01-02 | 15:24:39 | 9 | 600 |
| 2 | 2017-01-03 | 13:20:55 | 4 | 200 |
| 2 | 2017-01-05 | 12:24:39 | 3 | 200 |
| 3 | 2017-02-01 | 09:08:27 | 6 | 300 |
| 6 | 2017-02-03 | 10:20:20 | 8 | 600 |
| 4 | 2017-02-05 | 12:10:39 | 9 | 400 |
| 4 | 2017-02-07 | 09:14:27 | 8 | 400 |
| 5 | 2017-02-08 | 10:01:55 | 5 | 500 |
| 5 | 2017-02-08 | 14:24:39 | 4 | 500 |
| ItemID | Item group1 | Item group2 |
| 1 | Pants | Boy |
| 2 | Pants | Girl |
| 3 | Shirts | Boy |
| 4 | Shirts | Girl |
| 5 | Socks | Boy |
| 6 | Socks | Girl |
"Sort by date" and "sort by item group" are the two tables where i want to show the current stock value, "Actual value tables show the correct values (when end date is 2017-02-08):
The columns in the tables are measures im currently using.
Problems:
- Stock dont sum "total" in "sort by item group" but the values are correct when no date filters are used
- when a different start date is used the values in "Stock by item group" are wrong, values before start date are not included.
- "sort by date" table sums all values, but i cant seem to sum only values with last date and time for each item.
I Included the example PBI file and excel on dropbox
https://www.dropbox.com/s/7wtw8bkkvuudua0/Problem%20DAX%20PowerBI.zip?dl=0
Thank you for your time.