Brake even...normal be yu hav a FIXED kost, sae 100,000$
Then variabel kost, such as 10$ per thang yu make
Also gotta hav the pries=$ yu get wen yu sell 1 av em, sae 20$
Thus, gross profit=20-10=10$ per thang yu sell
Brake even =how many so 10$*n=fixed kost