The supplied graph indicates the average prices change of three metals per month according to 2014.
Looking from an overall perspective, it is readily that whilst the figure for Copper and Nickel exhibited plummet tendencies, Zinc showed a contrasting pattern.
When it comes to the change proportion in the price of Nickel was recorded as 6 in January, ranking highest among the three metals. Zinc has the figure was lower by 1% but increased minimally in February to 3, 1% higher than Copper. As the demand for Nickel decreased, its price fell sharply throughout the year
Looking at the graph for further information, between July and September, although Zinc showed initial stability, it eventually experienced an upward trend by December. Nickel was stood at -1%, Zinc hovered between 0% and -1%, Copper at 1%. Then, all three metals were turned upward remarkably in December, with the highest proportion was seen in Zinc (2%) , followed by Copper and Nickel which nearly 1%.
