# Leveraged Return on Investment

A general return on investment (ROI) formula is:

$$$$\text{ROI}=\frac{\text{Net Profit}}{\text{Total Investment}}.$$$$

But if you think about an investment that requires some sort of down payment, thus it is deemed as leverated return on investment (LROI), what would be a sensible way to compute such return? Specifically, I am interested in having $$\textit{down payment}$$ in the denominator. Think of a construction project or home investment.

$$$$\text{LROI}=\frac{\text{?}}{\text{Down Payment}}.$$$$

Any suggestions?