[SL] Extended value results

[R. Q. <rq...@gm...>]

Hi,
considering the example below -
Normally the extended value should be
180 x 81.50 x (100-7.5)/100 = 13569.75, so I am wondering why I am 
getting the value below.
regards
Robert

Item 	Number 	Description 		Qty 	Ship 	Unit 	Price 	% 	Extended
									13,570.20
------------------------------------------------------------------------
									2,613.96