What is the formula for the data below using INDEX + MATCH

 

A Sales Units Month January 6 February 5 March B C D 7 April 8,629 3,943 8,702 5,991 8 May 9 June 10 July 11 August 12 September 13 October 9,215 3,920 8,986 4,753 8,654 4,746 14 November 8,315 3,566 15 December 7,978 5,670 16 Product C A B 7,792 5,554 7,268 3,024 3,228 7,049 5,543 7,560 5,232 8,233 5,450 E LE F D E 3,105 3,168 3,168 10,350 3,751 8,965 2,891 5,418 2,782 4,085 2,524 5,575 3,258 5,333 2,144 4,924 3,071 6,563 2,147 3,319 6,827 2,636 4,057 8,544 2,726 3,837 7,535 2,705 4,664 9,070 8,389 7,367 5,377 7,645 8,173 6,088 G H Using INDEX + MATCH Sales Lookup Month Product Sales August B 3,920