How to find last value based on cutoff date using DAX

[tahafanaswala]

I have these two tables (shown below): one is a table of people, and the other is a table of a score assigned to that person on a given date. I have a what-if parameter configured in Power BI. How can I use that parameter as a cut-off date to get the last score for each person (if the cutoff date is before any scores were assigned, the result should be blank). For example, if I have a cut-off date of 3/14/2023, the values persons 0, 1, 2 should be 30, 20, and 45 respectively. Thanks for your help!

[lbendlin · Accepted solution]