me assume yu tri tu sae that list neer top is kost per yunit...
3.90+1.4+2.1+1.60=9$ yunit kost (direkt kost)
& yu hav fixed kost=52,000+38,530=90,530$
Sell stuf for 20$ eech, so direkt profit=20-9=11$ eech
Brake even...11x=90,530, so x=90,530/11=8,230
yu gotta sell 8,230 thangs tu brake even