During 2014, Clayton Co. reported the following revenues and expenses: Revenues: $10,000 Expenses included: $1,000 of raw material costs $3,000 in new equipment purchased at year-end $1,000 in executive salaries $2,000 in factory labor $800 in recurring general legal expenses $300 in sales commissions $400 in travel expenses $200 in office supplies What is Claytons gross profit margin?