The line chart given below shows the sales of two companies A and B in 5 years. J1 = The total sales of A in all years. J2 = The total sales of B in all years. What is the value of (J2 - J1) ?

600 400 1000 800

800

J1 = The total sales of A in all years. = 150 + 350 + 550 + 450 + 250 = 1750 J2 = The total sales of B in all years. = 950 + 650 + 750 + 150 + 50 = 2550 Now, (J2 - J1) = 2550 - 1750 = 800