The given line graph illustrates the proportion of the total music sold by three different ways between 2011 to 2010.overall ,it can be seen that the percentage of music sold through download and cds purchased decreased,while by stream increased over the given time period.

The given line graph

illustrate

Change the verb form

illustrates

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full

Change the article

a full

the full

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number of marketing songs by several

approach

Change to a plural noun

approaches

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( namely streams, downloads,

cds

Correct your spelling

CDs

purchased)between 2011 and 2018.Units are measured in percentage.

Overall

, observing the line chart it can be seen that the rate of music sales by download and

cds

Correct your spelling

CDs

purchased

decrease

Wrong verb form

decreased

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over the given period

while

stream

purchase

Fix the agreement mistake

purchases

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have

upward

Correct article usage

an upward

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direction. Getting back to the details, from the lowest point of nearly 5 per

sent

Correct your spelling

cent

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the stream music trade dramatically go up during seven decades until it reached a peak at 40 per

sent

Correct your spelling

cent

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in 2018. In comparison with stream

purchase

Fix the agreement mistake

purchases

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,

cds

Correct your spelling

CDs

purchase

Fix the agreement mistake

purchases

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had

a

Change the article

an

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enormous reduction from almost 55 per set from 2011 to 2018 to 25 per

sent

Correct your spelling

cent

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. The line chart reveals that the proportion of

songs

Fix the agreement mistake

song

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downloads from 35

percent

Change the spelling

per cent

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it

Correct pronoun usage

apply

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gradually climbed to 42 per cent from 2011 to 2014. Since

then

, it had reduced

next

four years

at

Change preposition

to

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30 per cent