i need help finding the anual straight-line depreciation deducions. Equations help a lot! Thanks alot!

Depreciable real residential rental property has been purchased for $800,000 and put into service during the third month of the taxpayer's tax year. For the applicable 27.5-year depreciation life, determine the annual allowable straight-line depreciation deductions. Remember that for real property, the first-year depreciation is proportional to months of service and subject to the mid-month convention in the month real property is placed in service