Date	S&P 500	REYNOLDS	HASBRO
janv-02	-1,70%	6,13%	1,66%
fvr-02	-2,31%	9,87%	-13,27%
mars-02	4,37%	-1,37%	10,55%
avr-02	-5,06%	6,87%	1,01%
mai-02	-1,19%	2,17%	-4,26%
juin-02	-7,15%	-23,97%	-11,37%
juil-02	-8,23%	1,64%	-9,66%
aot-02	0,64%	7,71%	7,35%
sept-02	-10,14%	-31,48%	-15,36%
oct-02	7,35%	0,57%	-8,18%
nov-02	5,96%	-4,81%	25,44%
dc-02	-5,50%	9,09%	-9,91%
janv-03	-2,46%	0,59%	3,90%
fvr-03	-1,72%	-5,78%	0,92%
mars-03	0,89%	-19,17%	14,70%
avr-03	8,12%	-12,68%	15,19%
mai-03	6,18%	21,02%	0,06%
juin-03	1,48%	9,15%	9,24%
juil-03	2,18%	-4,54%	7,78%
aot-03	2,34%	-3,86%	-1,86%
sept-03	-1,06%	15,78%	0,97%
oct-03	5,89%	21,47%	16,70%
nov-03	1,51%	14,93%	1,42%
dc-03	4,39%	5,34%	-3,75%
janv-04	2,20%	1,56%	-7,19%
fvr-04	1,40%	4,52%	10,73%
mars-04	-1,20%	-1,99%	-0,55%
avr-04	-2,56%	7,06%	-13,15%
mai-04	1,24%	-13,23%	4,08%
juin-04	2,00%	20,27%	-3,36%
juil-04	-3,88%	6,45%	-4,37%
aot-04	0,11%	4,93%	1,98%
sept-04	1,91%	-9,88%	1,46%
oct-04	1,66%	1,21%	-5,90%
nov-04	4,43%	9,83%	7,57%
dc-04	3,34%	3,93%	1,84%
janv-05	-2,74%	2,32%	1,14%
fvr-05	2,09%	1,90%	7,76%
mars-05	-1,86%	-1,66%	-3,17%
avr-05	-2,66%	-3,25%	-7,48%
mai-05	3,59%	6,34%	6,66%
juin-05	0,99%	-4,96%	3,02%
juil-05	4,22%	5,72%	5,53%
aot-05	-0,78%	0,76%	-5,65%
sept-05	0,93%	-1,10%	-5,07%
oct-05	-2,19%	2,38%	-4,12%
nov-05	3,82%	4,73%	8,39%
dc-05	0,19%	7,09%	-1,18%
janv-06	3,90%	6,08%	5,05%
fvr-06	-0,36%	4,96%	-4,29%
mars-06	1,76%	-0,61%	3,99%
avr-06	1,15%	3,93%	-6,59%
mai-06	-3,30%	0,26%	-5,94%
juin-06	-0,19%	4,88%	-2,32%
juil-06	-0,28%	9,96%	3,26%
aot-06	2,30%	2,65%	8,56%
sept-06	1,81%	-4,76%	12,07%
oct-06	3,60%	1,92%	13,93%
nov-06	2,13%	1,71%	3,20%
dc-06	0,91%	1,91%	1,87%

Calculate the rate of return for each portfolio, that is, 100% S&P 500 portfolio; or 99% S&P 500 and 1% Cash; or 99% S&P 500 and 1% Reynolds; or 99% S&P and 1% Hasbro. Could you plesae give the formula on excel. The risk free rate is of 3%