Charlotte owns a custom publishing business. She uses $500$ square feet of her home $(2,000$ square feet$)$ as an office and for storage. All her business has come from telemarketing $($telephone sales$),$ direct mailings, or referrals. In her first year of operation, she has revenues of $$37,000,$ cost of goods sold of $$25,900,$ and other business expenses of $$8,100.$ The total expenses related to her home are:

$\backslash$table$[[$Home mortgage interest,$$6,400$