The Product Life Cycle

http://www.quickmba.com/marketing/product/lifecycle/

Product life cycle the course that a product sales and profit take over its lifetime. A new product progresses through different stages which are introduction, growth, maturity and decline.After making new product idea sales are zero because firm haven't lauch this product to market so after developing prouct firm first stage is introducing this product to market so prople get aware of it then second stage is growth in this firm try to increase its market shares and at maturity level firm slowdown its growth because it has achieve many buyers and last stage is decline in this sales fall off.