The bar charts shown here represents the earnings of a Sales executive Mohit. Bar-chart (1) gives us the details of his earnings in the four quarters of the year across the five regions—West, North, South, East and Central. Bar chart (2) gives the details of his total earning in the four quarters in three different years. Bar-chart (1) is applicable for bar chart (2)and vice-versa.
Find the percentage change in Mohit’s earning due to the south zone during 2001 over the previous year.