and i want to create a chart that in one line have the following image
Item
Supplier
Valid Date
Cost Price
Valid Date
Cost Price
1392178
54963
23/12/2019
2,41
13/07/2021
1,69
How can i manage this. I want to have the item in the specific supplier in one line , and the max date of changing the cost price with the date and the price and the date with the price of the max date before of this date.
I have the 13/07/2021 that is the max date that the cost price has changed and i want also to have the max date before of this date and price that the price is different from the max date that is 23/12/2019.