calculate all missing values with a "?"

Sector	Weight (%)	Return (%)	Weight (%)	Return (%)
	Benchmark	Benchmark	Portfolio	Portfolio
Telecom	3	1.25	2	1.00
Utilities	5	-1.00	5	-2.00
Consumer Disc.	12	3.00	8	2.50
Materials	5	1.00	5	1.25
IT	16	2.25	21	2.50
Consumer staples	7	1.2	9	0.75
Industrials	6	-1.5	12	-0.75
Financials	13	0.5	10	1.25
Healthcare	15	2.3	13	2.00
Energy	10	0.25	10	0.75
Real Estate	8	0.5	5	1.00
Total	?	?	?	?
Attribution to Allocation				?
Attribution to Selection				?