"Investing $5,400,000 in a TQM initiative will increase demand for your products 2.9% this and in all future years. Last year's sales were $287,789,193. Assuming similar sales next year, the increase in demand will provide $8,345,887 of additional revenue. With a contribution margin of 48.1 %, this revenue will add $3,600,000 to the bottom line. Assume that the demand increase and margins will remain at last year's levels. How long will it take to achieve payback on the initial $5,400,000 TQM investment, rounded to the nearest month? "