plsplspls help with questions 13 and 15, pick between and don't guess thank u it's rlly urgent I'll give u a brainlist including the 25 points!!​

Last month, leonhard euler's watch kiosk at the mall had total sales of $9,489. merchandise totaling $225 was returned. the goods that were sold cost leonhard euler's $5,481. operating expenses for the moth were $992. what was the gross profit on sales?