missing part 1 please do it right

Problem 9 Intro Download this spreadsheet with stock prices for five consumer packaged goods companies. Part 1 1 Attempt 3/10 for 8 pts. What was the monthly return for Unilever (UN) from January to February 2015? 5+ decimals Previous answers: 15.7265%; 0.157265 Submit Part 2 Attempt 1/10 for 10 pts. What was the monthly return from November to December 2017 for a portfolio with the following weights? A B D E F F 39 Portfolio KO MDLZ PEP PG UN 40 Weights 0.25 0.2 0.15 0.15 0.25 0.622% Correct A B C D E 39 Portfolio KO MDLZ PEP PG UN 40 Weights 0.25 0.2 0.15 0.15 0.25 0.622% Correct A B . F G H 43 Date KO MDLZ UN Portfolio 79 12/1/17 0.011 -0.003 -0.017 0.00625 =SUMPRODUCT B$40:F$40,379:F79) Part 3 - Attempt 1/10 for 10 pts. What was the standard deviation of the same portfolio? 0.03218 Correct A B F G H 7912/1/17 0.011 -0.003 -0.017 0.00625 =SUMPRODUCT B$40:F$40,879:F79) 80 B E F G H PG 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 29 A Date 1/1/15 2/1/15 3/1/15 4/1/15 5/1/15 6/1/15 7/1/15 8/1/15 9/1/15 10/1/15 11/1/15 12/1/15 1/1/16 2/1/16 3/1/16 4/1/16 5/1/16 6/1/16 7/1/16 8/1/16 9/1/16 10/1/16 11/1/16 12/1/16 1/1/17 2/1/17 3/1/17 4/1/17 5/1/17 6/1/17 7/1/17 8/1/17 9/1/17 10/1/17 11/1/17 12/1/17 36.37 38.25 35.82 36.13 36.49 34.95 36.90 35.31 36.03 38.37 38.61 39.22 39.18 39.37 42.35 41.22 41.03 41.70 40.45 40.26 39.23 39.63 37.71 39.59 39.18 39.55 40.00 41.03 43.23 42.65 43.95 43.67 43.15 44.43 44.23 44.70 D MDLZ PEP 32.90 84.01 34.48 88.67 33.69 85.66 35.97 85.78 38.99 86.96 38.57 84.18 42.47 87.53 39.86 85.03 39.40 85.67 43.61 93.55 41.25 91.70 42.36 91.48 40.87 91.55 38.43 90.18 38.04 94.48 40.91 95.60 42.37 93.94 43.34 98.36 42.06 101.89 43.05 99.86 41.98 102.47 43.17 100.99 39.61 94.30 42.58 99.30 42.71 98.49 42.37 104.75 41.56 106.16 43.63 108.24 45.14 111.67 41.84 111.11 42.83 112.19 39.56 111.34 39.56 107.96 40.53 106.79 42.01 112.89 41.87 116.99 UN 74.67 38.60 75.95 38.69 73.11 37.45 70.94 39.00 70.50 38.57 70.37 37.79 68.98 40.50 64.08 36.24 65.23 36.58 69.26 40.93 68.47 40.10 72.65 39.72 74.74 40.72 74.10 39.07 75.96 41.27 73.94 40.66 75.40 41.68 78.78 43.72 79.64 42.95 81.87 42.94 84.16 43.26 81.39 39.25 77.92 37.69 79.45 38.86 82.78 38.47 86.74 44.79 85.58 47.41 83.18 49.86 84.54 54.19 83.64 53.13 87.16 55.92 89.25 57.20 88.00 57.16 83.51 56.12 87.69 55.91 89.54 54.93 N mmmmmm