Form 1099 S

I received a Form 1099 S after I filed my 2019 Taxes for my second home I sold during 2019.  I have to amend my taxes and I have a question on how to properly file this form.  Under Second Home Information, is asking for Net Proceeds, but my 1099 S form only  shows Gross Proceeds ( the actual selling price).  My question is,  where do I enter the closing expenses incurred on the second home? Also,  where do I put the information for the Title Company that send me the 1099 S?