I want the default value in my EOY Forecast input box to be the most recent EOY Forecast value in my SharePoint list. If there is no EOY Forecast for that ID column in the SharePoint list, then I want the input box to be blank. What formula for the input box default property will achieve this outcome? I would really appreciate any help!
My input box default property formula
LookUp('Variance SharePoint', Index = ThisItem.Index, 'EOY Forecast')
This returns the EOY Forecast for that index column but the indices are going to change each month which is why i am using ID column of concatenated text that does not change each month.