My wife and I are doing family business. It is an online retail babyshop. We have doing this for more than one year. Fortunately, we can say that our business is a profitable business. When running our business, I feel difficulties in managing finance of our online retail. I am confused on how to decide how much percentage of our profit that would be the next capital for buying new goods in the next month. So all this time, we put all our profit in current months to be the capital for buying new goods in the next month. I feel that this is wrong. There must be something/some knowledge that I must learn. Something related to the finance management in retails.
Any advises would be appreciated in this situations. Any good reads/references would be appreaciated also.