dùng hàm SUMIF()
dúmumif()
[TABLE="width: 614"]
[TR]
[TD] [/TD]
[TD="align: left"] Đồng hồ treo [/TD]
[TD="align: left"] Đồng hồ đeo [/TD]
[TD="align: left"] Quạt bàn [/TD]
[TD="align: left"] Quạt trần [/TD]
[/TR]
[TR]
[TD="align: left"]L[/TD]
[TD="align: left"]=SUMIF($H$9:$H$20,I$22&"-"&$H23,$E$9:$E$20)[/TD]
[TD="align: right"]8[/TD]
[TD="align: right"]56[/TD]
[TD="align: right"]0[/TD]
[/TR]
[TR]
[TD="align: left"]S[/TD]
[TD="align: right"]150[/TD]
[TD="align: right"]65[/TD]
[TD="align: right"]50[/TD]
[TD="align: right"]0[/TD]
[/TR]
[/TABLE]