Working out Social Media ROI?

caregiver12

I've Got It
Joined
Jul 27, 2017
Messages
100
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Age
39
Channel Type
Youtuber
There is a big audience for me on Facebook so I've started running some paid ads on there, pushing people to some of my YT videos.

What I want to work out is how much revenue is generated on my video from Facebook, so I can see if this paid promotion has made an impact, as if so I'll increase the budget.

I can't see that you can break revenue down by source, so how else can I do it? Even roughly?