help me calculate my ROI

[Marcus Wright]

Just wanting some help calculating my ROI's on a couple of properties please and thank you.

1.) Cost 75k, Down payment 4% down, Rental income $1225, Maintenance 10%, No management company, Property tax $111, Insurance 100 a month Mortagage $575

2.) Cost 32k, Own free and clear, Rental income 760, Maintenance 10%, No management company, Property tax $29, Insurance $74