The Table shows the Number of Laptops and Desktops manufactured by a company.

What was the difference in the total number of Laptops and Desktops manufactured in 2009 to the total number of Laptops and Desktops manufactured in 2011?

8600

Total number of laptops and desktops manufactured in 2009 = 20500 + 24700 = 45200

Total number of laptops and desktops manufactured in 2011 = 16400 + 20200

= 36600

Required difference in total number of laptops and desktops manufactured in 2011  & 2009 = 45200 - 36600

= 8600