Goodday everyone.

Please, I'm doing research about a retail business project I'm about
to embark on.

I need to have an idea of the revenue (total sales) the average
Nigerian shop selling provisions and everyday items in an average
city makes per day/week/month.

I'll appreciate the inputs of people who operate such shops or have
access to those who do. I just need an estimate of the amount daily,
weekly or monthly.

Thanks.