Sale of primary Residence

Hello,

I sold my primary Residence in September $340,000. I have lived in that home since 1992 and always owned it. 
Turbo tax has a couple columns I’m not sure what the answer would be and can use some help please.

What would I enter(or how would I calculate) and  for proceeds of disposition adjusted cost base? Any help is greatly appreciated. I live in the province of Alberta. Thank u