the graph below show the average monthly change in the prices of three metals during 2014

The line graph illustrates the

percentage

of how prices of three metals

change

Wrong verb form

changed

show examples

every month in 2014.

Overall

, all the

proportion

Fix the agreement mistake

proportions

show examples

of metals witnessed a downward trend in

an

Correct article usage

the

show examples

entire period, except the figure for zinc observed a growth trend . The

percentage

of nickel made it the most significant surge. In January, at the top spot is the

percentage

of nickel, which stands for 6%, followed by the figure for copper at 2%. At the bottom of the list is zinc, which had the data of 1%. Take a look at the chart, the proportion of nickel registered a plummet to approximately minus 3% in the next 6 months,

then

rose to 1% in November and

keep

Wrong verb form

kept

show examples

its position till the end of a period.

In contrast

,the proportion of zinc rose significantly to 3% in February, before

fell

Wrong verb form

falling

show examples

to minus 1% in the next 4 months,

then

it went up to 2% in the

last

month of 2014. Meanwhile, the

percentage

of copper recorded a downward trend to 0% in June,

then

rose

up

Change preposition

apply

show examples

slightly to about 1.5%

at the end

of the period.