At the end of the year, Sam gathered the following information: her gross

income was $$660,00,$ with $$5000$ withheld for taxes, which matched her total

tax obligation. Her annual mortgage payment consisted of $$8000$ in interest

and $$3000$ in principle. She spent $$13000$ on groceries and utilities, $$6000$ on a

vacation, and made a $$2000$ down payment on a car, financing the remaining

$$24000$ with a loan. She had to buy the car for transportation. Additionally, she

contributed $$6000$ to her IRA. What is her total operating percentage? $($Keep

two decimal places$).$