Why are the Rs's of the annual Rs different from the Rs's computed when the beta comes into play? If they are not different, why is that?

D E F 1 Stock 2 3 4 5 6 Golden Minerals Company (AUMN) Callon Petroleum Company (CPE) Eastman Kodak Company (KODK) General Motors Company (GM) Acadia Healthcare Company, Inc. (ACHC) Acasti Pharma, Inc. (ACST) Best Buy Co., Inc. (BBY) Tesla, Inc. (TSLA) Netflix, Inc. (NFLX) Facebook, Inc. (FB) B Average Monthlyr Average Annual r(rs) 4.23% 50.72% 0.16% 1.91% -0.01% -0.10% 0.39% 4.64% -1.00% -12.03% 11.86% 142.36% 2.46% 29.55% 3.52% 42.24% 2.93% 35.11% 1.79% 21.53% 7 8 9 10 11 12 13 Weight (by Value) Stock B Weighted 0.99 11.10% 1.35% 0.00 2.87 26.86% 0.00 1.37% 1.38% 2.59 26.86% 0.00 1.42 15.34% 1.56% 0.02 Golden Minerals Company (AUMN) Calon Petroleum Company (CPE) Eastman Kodak Company (KODK) General Motors Company (GM) Acadia Healthcare Company, Inc. (ACHC) Acasti Pharma, Inc. (ACST) Best Buy Co., Inc. (BBY) Tesla, Inc. (TSLA) Netflix, Inc. (NFLX) 1.37 14.84% 1.55% 14 15 16 17 18 19 20 21 22 23 24 25 0.02 1.11 12.28% 1.35% 0.00 1.48 15.93% 2.10% 0.08 1.2 13.17% 8.96% 0.77 0.96 3.92% 0.26 10.81% 13.17% Facebook, Inc. (FB) 1.2 2.95% 0.16