please solve correct no explanation only 100% correct answer

Following is the last year data of X company: The company sold 45,000unit last year. IvIanagers of X company believes that the sales can be doubled when expenditure on advertising is increased by $1.51] per unit, keeping the selling price same as last year. Determine the amount by which advertising can be increased with prots remaining unchanged? $1,665,000 $1,300,000 $1,500,000 $1,660,000 0-6 9