If you can please show formulas in excel! Thank you so much

Return of Stock A Return of Stock B -2.00% -0.75 0.51% 0.68 1 0.51% 2.02% 1.49% 1.5 2.3 0.65 0.52 -0.91 0.82 -1.66% -0.30% -0.10% -0.90% 1.51% 0.10% 1.19% -0.29% -0.6 1.2 January February March April May June July August September October November December January February March April May June July August September October November December -1.4 -0.85 -0.10% 0.75 0.59% -1.6 0.78% -0.48% -1.26% 1.08% -0.13 0.87 -0.68 0.28 0.49% -0.35 0.87% -1.65 -0.48% 1 0.29% -2.3 -0.87% -1.5 Calculate the portfolio rate of return and portfolio standard deviation if you invest 75% in stock A and 25% in stock B