The management accountant at Lang Manufacturing Co. collected the following data in preparation for a life-cycle analysis on one of its products, a leaf blower: Item This Year Change Over Last Year Average Annual Change Over the Last Four Years Annual sales $2,700,000 1.8% 23.5% Unit sales price 450 2.4% 8.3% Unit profit 100 -1.0% 3.0% Total profit 600,000 -1.2% 30.0% The stage of the sales life cycle the product is in is: Withdrawal. Introduction. Decline. Maturity. Growth.