Im really not a great businessperson, Lemonis tells EW.

I understand business and I understand numbers, but I think what I understand more than that is people.

Ultimately, I think businesses fail and people fail because they dont have their act together.

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Credit: CNBC

Read on for more about those disappointments and to learn about his next venture,The Partner.

ENTERTAINMENT WEEKLY:What have you learned about business since starting the show?

MARCUS LEMONIS:Ive learned a lot about myself.

I have some really bright people who are energetic and dedicated and then theres the opposite of that.

Whats been the most disappointing business youve helped?

The most disappointing businesses, for me, are the ones where the people flat-out lie.

Its when the businessowners use me.

Which have been the most gratifying to work with?

Definitely Sweet Petes in Jacksonville.

This was a candy maker who is now a candy mogul.

[And] Simple Greek out of Pittsburgh, which is a Chipotle-like model for Greek food.

When I found the business it had three locations and there are now 19 franchises around the country.

And then there are some this season like [Vision Quest Lighting] and [Inkkas] shoe company.

I dont just measure success on money; sometimes its the development of the individual.

If people dont think they can make it, go to Key West and talk to her.

Do you get a lot of celebrities who want your advice?

Most people get scared off by it.

Small businesses are a risky proposition and most celebrities want a homerun.

Wheres the most bizarre place youve been asked for advice?

Im here to have fun!

Tell us about your new showThe Partner.

Its really disconnected fromThe Profitand is a totally separate venture.

This isnt me raising my hand for help, but I need help.

I dont think I could be luckier.

The finale ofThe Profitairs Tuesday at 10 p.m.