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 line graph illustrates the changing patterns of prices of three metals average monthly in 2014.
By and large, the percent changing in price on three metals all fluctuated.
A closer look at the chart indicates that the changing in price of Nickel metal is the highest in Jan and plunges to be the lowest in Dec, it started about 6% decrease to 1% in one year. Specifically, the changing in price of Zinc metals completely opposite. In Jan, the Zinc metals is a lowest just 1% underwent change the Zinc metals have 2% in Dec become the metal with the highest percent. In the first half of 2014, the Nickel has a drop from 6% to -3%. The Zinc tends to decrease from 1% to -1%. The Copper have same trend with the Zinc down from 2% to about -0.5%. In the second half of 2014, two metals Zinc and Copper still have the increase trend. The Copper modest increase from 1% to 1.5%. The Zinc rises from -0.5% to 2%. Although, the nickel has an increasing trend from -1% to 1% but still lower than the other metals.