Open Google Analytics and apply the ChannelMix Reporting Segment
Click on Acquisition
Click All Traffic
Click Source/Medium
Select your date range and comparison period
Select advanced
Edit the view to:
Include > Source / Medium > Matching Reg Exp social
Exclude > Source / Medium > Matching Reg Exp > cpc|ppc|paid
NO SPACES – the [ | ] button is just above your Enter key on your keyboard
Click Apply
Make sure All Goals are filtered under Conversions