The graph below shows the average monthly change in the prices of three metals during 2014 Summarise the information by selecting and reporting the main features and make comparisons where relevant

The given chart depicts the variation of medium monthly prices of three materials in 2014.
Overall, the Zinc prices mutation was highly accounted at the end of 2014 . On the contrary, It also stood at the lowest one in January.

To begin with, at the beginning of year 2014, the variation rate of Zinc metals made up only 1% , while the figure for Nickel change stood at 6%, 6 times as much as Zinc. In June, Nickel material proportion was suddenly hit the lowest point to -3 percent and fluctuated progressively from July to September with -1 %, similar with Zinc and Copper metals were 0.5 % and 1% respectively.
Turning to the further analysis, we can see that although the commencement of Nickel was highest, but it became the lowest in December, being opposite with Zinc rate when reached the highest point at 2%. The others is Copper, which accounted for around 1.5%.