How to make a score system around destructible meshes.

Hello currently i am working on a project where a robot destroys buildings and those buildings are destructible meshes. I am now working on trying to earn points after you destroy a building and display that on the screen. I would like some advice on how to get that done.
Thanks for your time.
This is my Destructible mesh BP so far

This is my UMG Score
The Score on play displays 0 as which i want but when i punch the mesh and it fractures and disappears the score does not get added to the total. Score being 100 Total being 0, so should display 100 on play.

I made a work around with hiding a mesh within the building to pickup after the building is destroyed.