Penetration ratio is a guideline which shows the rate of transmission of one product in a exact population. A quota of the number of deals or accepting of an item or assistance matched to the entire hypothetical advertise for that item or assistance. The number of deals or acceptance can be distinctive firm’s sale or business even though the hypothetical advertise can be the whole community or an assessment of over number of potential buyer for the item. For instance, if there are 200 million inhabitants in a state and 40 million of them have mobile phones them the market penetration of mobile phones would be nearly 20 percent. This would be in hypothesis more than 120 million more possible buyers for mobile phones, which means that mobile phone manufactures will record progress in sales. Most of the time organizers have to determine if they want to follow increase of sales by achieving actual classification consumers from their rivals or increasing the whole community of classification consumers, captivating new buyers to the retail. Penetration ratio benefits discovering which of these market plans would be relevant and benefits organizers to track their improvement. This kind of equations can be determined for management rather than buying as well.