Help me mark this Ielts writing task 1 excercise

The table given illustrates the amount of money to buy a cup of coffee in Australia’s six different cities between 2010 and 2014.

Overall, it is obvious that the price of a cup of coffee in Melbourne witnessed the biggest increase when the opposite was true for that in Canberra. Besides, this number did not change in Brisbane.

Looking at the table more closely,one can see that a cup of coffee’s price in Melbourne increased by one-fifth,from $2.4 in 2010 to $2.9 in 2014,however, this price was not the highest in comparison with Sydney. In Sydney experienced an considerably significant change in terms of of a cup of coffee’s price by 13.2% when the sum of money to buy this item grew from $2.9 to $3.17 over the period shown.

On the other hand, from 2010 to 2014 ,both Canberra and Adelaide went through an increase in the price to buy a coffee cup by under 7%. Besides, one coffee cup’s price in Perth went up to $2.25 in the last year of the period. This price was the same as Brisbane of which price remained unchanged during this period.