\text{EGI} = \text{Gross Income} \times (1 - \text{Vacancy})
\text{OPEX} = \text{Taxes}+\text{Insurance}+\text{Utilities}+\text{Repairs}+\text{Management}\ (\% \times \text{EGI})+\text{Other}
\text{NOI} = \text{EGI} + \text{Other Income} - \text{OPEX}
\text{Cap Rate} = \frac{\text{NOI}}{\text{Price}}
\text{DSCR} = \frac{\text{NOI}}{\text{Annual Debt Service}}
PMT = L \cdot \frac{i}{1-(1+i)^{-n}},\quad \text{Balloon at term }(t)= L(1+i)^t - PMT\cdot \frac{(1+i)^t - 1}{i}
\[ \text{EGI} = \text{Gross Income} \times (1 - \text{Vacancy}) \] \[ \text{OPEX} = \text{Taxes}+\text{Insurance}+\text{Utilities}+\text{Repairs}+\text{Management}\ (\% \times \text{EGI})+\text{Other} \] \[ \text{NOI} = \text{EGI} + \text{Other Income} - \text{OPEX} \] \[ \text{Cap Rate} = \frac{\text{NOI}}{\text{Price}} \] \[ \text{DSCR} = \frac{\text{NOI}}{\text{Annual Debt Service}} \] \[ PMT = L \cdot \frac{i}{1-(1+i)^{-n}},\quad \text{Balloon at term }(t)= L(1+i)^t - PMT\cdot \frac{(1+i)^t - 1}{i} \] \[ \text{Cash-on-Cash} = \frac{\text{NOI} - \text{Annual Debt Service}}{\text{Cash Invested}} \]