How do you find the maximum debt to leverage when given future cash flows and rf ate?

- If risk free rate = 4%, tax rate = 25%, and pv of fcf = 500/1.1, what is the maximum debt one could take as a loan if they are opening a store with a cost of 200?

- would it just be the present value of cash flows discounted by 4% assuming that the loan would be paid back fully by those cash flows