From figure 20 we can see that the volume of sold batteries from 2004 (584 million batteries) to 2008 (611 million batteries) has increased by 27 million batteries. During that period of time the volume has slightly raised, where in 2006 was the highest volume of batteries sold 620 million batteries. Being a difference the value at 2004 to 2008 prises has decrease, started with £450m in 2004 and falling down to £391m in 2008. Here the conclusion which we can drew, as the prices of the batteries fall down , the volume or the demand for them will go up and the way around. The competitors selling batteries are too many, that makes the price of them goes down as the demand is too high and consumers have got big selection. We consider that as price elasticity of demand, where the elasticity measures the extent to which demand will change. Where we have % change in demand greater than % change in price, we have elastic demand same as in this case.
Figure 21. We can see there are several classifications as purchasing batteries made by adult population, number of buyers of batteries and number of batteries purchased per buyer. They all have slightly increased by approximately 1% or less per each category. Situation for the figure 21, which presents purchasing of batteries events, is almost the same.
Figure 24. The average spending on batteries per battery buyer based on adults started with 49.44 in 2005 and has grown to 50.64 in 2008. The average spending for batteries per buyer stood almost the same during the period from 2005 to 2008, it was 10.6 in 2005 and felt down to 10.00 in 2008. The number of buyers of batteries started with 38.96 in 2005 and reached to 41.18 in the following year , kept falling down in 2007 (40.05) till reaching