The figure decipts the trend in price changes of Copper, Nickel and Zinc monthly in average during 2014. Overall, price changes of all metals tumbled in the first half of the year, and slighlty bumped up in the another half.
Focusing on Januanry to June, prices change of Nickel encoutered a enormous decrease, dropping from 6% more than previous months to 3% less. Meanwhile, the price change of Copper declined from 1% to -1%, even with a slghtly increase in the first two months. Finally, for price change in Zinc, it reduced from 2% to roughly -0.5% in six mouths.
However, started from July, prices change of Nickel rised to -1%, remaining stable for three mouths, and climbs to 1% in November. Apart from that, price change of Zinc also increased to -0.5%, staying the same for three months and even dating back to -1% in October, but returning to 2% in the December. Lastly, price change of Zinc rises to 1%, being sustained for 3 months, then modestly ascended to 1.5% at the end of the year.