The given line graph depicts the information about the average monthly change in prices of copper, nickel and zinc in 2014. The data has been calibrated in percentages.
Taking a general overview, it is crystal clear that the three metals are followed downward trend. Meanwhile copper showed upward trend during the months. However all metals showed fluctuations.
Turning to the details, in initial year, the ratio of nickel was noticed in 6% in the month of January and decreased gradually during the months. The percentage of nickel remained stable during the month of March and April. The ratio of copper metal was observed at 2%, but , it decreased dramatically and in the month of December, it was seen at 1.5%. Nickel and copper intersected during the year of 2014 in between May and June when theses were at -1.5%.
Moving towards the further details, in initial month, the percentage of zinc was observed at 1%. The ratio of zinc metal increased sharply over the given year and reached up to 3%, but it again declined and noticed at 1% in May and fluctuations were observed in the ratio of zinc from 1% to 2%. Copper and zinc intersected during the months when these were at 0.1%. Copper and zinc metals remain stable for three months. In June, nickel was seen at -3%.