is there any way I can sum up values indicated by column F (2) in one cell without adding additional column. I am pretty sure that I need to use an array formula, but I don't know how to do it. Database I am working on is huge so it needs to be automatic.

In this data sample the answer would be 19.

[![Data Sample](https://i.stack.imgur.com/wIMza.png)](https://i.stack.imgur.com/wIMza.png)