Hi have a table with where each person has different project with hours

But when i got to the summary screen:

get values in fields where no value should be:
this is my code:
Sum(
Filter(
ResPers,
Name.Value in ResAllocation.Titel
),
Hours
)
So what I am trying to do is to get the sum of every value of the column Hours in the List ResPers where the Name is equal to the name of the Column Titel in ResAllocation. but for each name idividually.
Thank you all for the help