Answer:
The numbers are missing, so I looked for similar questions to fill in the blanks:
Rf (Switzerland) = 0.54%
Rm (Switzerland) = 8.5%
Beta (Switzerland) = 0.919
Rm (global) = 9.06%
Beta (global) = 0.532
a. What is Nestlé's cost of equity based on the domestic portfolio for a Swiss investor?
Re (Switzerland) = Rf + [Beta x (Rm - Rf) = 0.54% + [0.919 x (8.5% - 0.54%)] = 0.54% + 7.32% = 7.86%
b. What is Nestlé's cost of equity based on a global portfolio for a Swiss investor?
Re (global) = Rf + [Beta x (Rm - Rf) = 0.54% + [0.532 x (9.06% - 0.54%)] = 0.54% + 4.53% = 5.07%