I did some research into this a few years back as I was looking to open a supermarket and I came up with the following findings:

- The amount you'd be requiring would be determined by the following

1. The location you are looking to establish in.

Some locations will be more pricey than others and if you decide to set in one of these, you'd be requiring more capital.

2. Your arrangement with distributors.

If you have a lot of fund, you can fully stock your supermarket with FMCGs, sell these off, rinse and repeat.

On the other hand, if you don't, then you can buy just a little of the goods required then proceed to make arrangements with distributors who will supply the goods needed on credit and come at a later time for their invoice. This way, you wouldn't be needing such bulk capital to start.