As British business owners try to come to terms with the vote to leave the European Union, there are fears of the implications a "Brexit" will have.

London perfume maker, Sarah McCartney, said her businesses future "is not smelling so sweet at the moment".

She said she relies on trade with Europe and not only has the cost of raw materials increased, so too will the amount of paper work.

International trade lawyer, Miriam Gonzalez, said trying to minimise businesses uncertainty should be the governments top priority.

She said businesses need to know what the framework for Britain's negotiations with the EU will be, so they can try and minimise uncertainty.

City of London Corporation Policy Chairman, Mark Boleat, said that those uncertainties mean that "some investment is certainly going to be deterred."

While Edwin Morgan from Institute of Directors said the unknowns mean two thirds of its members think a "Brexit" will be negative for their business and cutting investment, redundancies and relocating are all on the table.

London - 27 June 2016

1. Perfume maker Sarah McCartney working in her factory in west London

2. Close of essence being poured

3. Close of perfume essence being bottled

4. Cap being placed on vial

5. Perfume label reading (English) "Inevitable Crimes of Passion"

6. Label being stuck on vial

7. Finished vials

8. SOUNDBITE (English) Sarah McCartney, 4160 Tuesdays perfume maker:

"I make perfume and the future is not smelling so sweet at the moment. I deal with France and Germany, I buy raw materials from Europe, I sell to Europe. I just think it's going to get a heck of a lot more complicated, and it's already got more expensive."

9. Various of McCartney during interview

10. SOUNDBITE (English) Sarah McCartney, 4160 Tuesdays perfume maker:

"Our market is worldwide and I really, really need to trade with Europe. I buy raw materials from Europe and suddenly they're going to be, well at least, eight per cent more expensive and probably there's going to be ten times as much paperwork."

11. McCartney making perfume

12. Perfume bottles made by 4160 Tuesdays

13. Various of commuters in the City of London

14. Various of financial institutions

15. SOUNDBITE (English) Miriam Gonzalez, International Trade Lawyer:

"There are only a few companies that have really done the nitty-gritty homework to be ready for Brexit. Many of them, they were kind of hoping that it would not happen, so now is the time that they really need to start doing that work."

16. Cutaway of Gonzelez's hands

17. SOUNDBITE (English) Miriam Gonzalez, International Trade Lawyer:

"This country, the businesses in this country need to know what is the framework that the government is aspiring to negotiate, and therefore, whether that is the single market, remaining in the single market or not makes a crucial difference. Trying to minimise the legal uncertainty, I would have thought that is the top priority."

18. Various of painting by John Single Copley called "The Defeat of the Floating Batteries at Gibraltar"

19. SOUNDBITE (English) Mark Boleat, City of London Corporation Policy Chairman:

"I think the authorities have handled the market turmoil as well as they could have done. That was done carefully on Friday and no doubt is continuing today but that's a short term issue. It's some of these longer issues that need resolving. It remains to be seen what impact this will have on the growth of the British economy over the next few months, what impact on tax revenue, what impact on foreign direct investment."

20. Cutaway of painting

21. SOUNDBITE (English) Mark Boleat, City of London Corporation Policy Chairman:

"The fundamentals remain unchanged, Britain is still a very attractive place for business and for investment, but given those sort of uncertainties some investment certainly going to be deterred. Very much depends what the sector is, how important membership of the single market is. But we are going to see some uncertainty and that's going to have an affect on investment."

22. Boleat walking

23. Various aerials of London's business district, Canary Wharf

24. Various exteriors of Parliament

25. Edwin Morgan, Head of Media Relations, Institute of Directors

26. Cutaway of report

27. SOUNDBITE (English) Edwin Morgan, Head of Media Relations, Institute of Directors:

"We asked our members immediately after the referendum result came in, what they thought, how they thought it would affect their businesses. Two thirds said that it was negative for them against only about a quarter who thought it was positive. On the specific questions we asked, we asked about investment and hiring decisions and there was also some quite worrying figures. About 36 percent of our members think that they will have to cut investment as a result and about 5 percent of our members say they might have to make redundancies which is obviously quite worrying. There are also some other figures in there on whether or not they'll keep all their operations in the UK or whether they may be forced to move overseas. About 1 in 5 are considering, as we speak, moving some of their operations out of the UK, whether that's to the EU or to somewhere outside it. I mean ultimately we think that our members are very resilient, we think British business is tough and will get through it and will adapt, but certainly at the moment there is a lot of nervousness out there in the business community."

28. Cutaway of report