The following transactions are July activities of Bills Extreme Bowling, Inc., which operates several bowling centers. Bills collected $21,000 from customers for services related to games played in July. Bills billed a customer for $690 for a party held at the center on the last day of July. The bill is to be paid in August. The mens and womens bowling leagues gave Bills advance payments totaling $2,150 for the fall season that starts in September. Bills received $2,350 from credit sales made to customers last month (in June). Bills paid $1,950 to plumbers for repairing a broken pipe in the restrooms. Bills paid $3,300 for the June electricity bill and received the July bill for $4,000, which will be paid in August. Bills paid $5,620 to employees for work in July. Required: Prepare an income statement for Bills Extreme Bowling, Inc., for the month ended July 31. (This income statement would be considered preliminary because it uses unadjusted balances.) What is the company's net profit margin, expressed as a percent.