Allocating Operating Expense-Relative Net Sales Hayley Doll owns a car stereo store. She has divided her store into three departments. Net sales for the month of July are as follows: Deluxe: $33,600 Standard: 38,400 48,000 Economy: Advertising expense for July was $20,000. Allocate the advertising expense among the three departments on the basis of relative net sales. Advertising Expense Deluxe Standard Economy Total $