The Belgium international joined OM from Standard Liege in August 2014 and has since become the club's undisputed number nine.
Batshuayi sits fourth in the Ligue 1 goalscoring charts heading into the final matchday with 17 goals in 36 appearances and his good performances have not gone unnoticed.
Several Premier League sides are keeping a close eye on the 22 year-old's situation and Marseille seems ready to cash in on its star attacker.
"The entire world knows Batshuayi will leave Marseille," Passi said. "That's part of Marseille's current predicament. We know why players leave Marseille. It's a matter of money.
"You have to make do with what you have."
Batshuayi has a contract with Marseille until June 2020.