Data Interpretation MCQ Questions and Answers - Line Chart

$$\frac{33.65+32.85+34.04+32.76+38.51+40.01+43.47}{7}$$
$$\eqalign{ & = \frac{255.29}{7} \cr & = 36.47 \cr}$$

Price of petrol in 2004 = 36.49
Price of petrol in 2014 = 73.70
Average Difference
= $$\frac{\text{Difference between 2004-2014}}{\text{Price of petrol in 2004}}$$      × 100
= $$\frac{37.31}{36.49}$$  × 100
= 102%

2014