The ledger of Duggan Rental Agency on March $31$ of the current year includes the following selected accounts before adjusting entries have been prepared.

$\backslash$table$[[,$Debit,Credit$],[$Prepaid Insurance,$$3,600,],[$Supplies$,2,800,],[$Equipment$,25,000,],[$Accumulated Depreciation$-$Equipment,$$8,400,],[$Notes Payable,$20,000,],[$Unearned Rent Revenue,$9,300,],[$Rent Revenue,$-0-,60,000],[$Interest Expense,$14,000,],[$Salaries and Wages Expense,,$]]$

An analysis of the accounts shows the following.

The equipment depreciates $$250$ per month.