The pie chart given below shows the number of television sold by 8 different companies. The total number of television sold by all these 8 companies is 21000. The number of television sold by a particular company is shown as a percent of total number of television sold by all these 8 companies.

J1 = The value of average number of television sold by P and W.
J2 = The value of average number of television sold by Q, R, S and V.
What is the value of (J2 - J1)?