Determining rental income

[Geovany Espinoza]

Hi everybody sorry for the novice question. I’ve been calculating the monthly mortgage payment on a property. The payment would be about 740 dollars. Once you have the payment number how you can you estimate the actual income from the property ? Landlords would be asking for rent more than $740 to bring in cash flow. Again I know it’s such a simple but I’m having a hard time understanding.