1. Royal Mail is a company that is responsible for performing postal services with headquarter in the United Kingdom. It was founded in 1516. Royal Mail is not only in charge of making deliveries but also of collection. This company was registered as a government entity and remained that way until 2013, when there were changes in the laws that did not allow it to stay that way. After that change of rules, the British government acquired 30% of the shares, and finally, in 2015, they decided to sell all their claims. After the changes that took place due to the sale of shares and the shift from public to a private company, in 2015, Hilary Hard had a meeting with the senior management of Royal Mail to discuss the changes to be made for the future of the company. The company's management wanted to change the way of seeing the business for the future, stop seeing the company based on the political laws of the government, and worry more about future investors and current ones too, leaving behind the idea of focusing on the British population. The main idea was to make changes in the company's policies; they wanted the shareholders to benefit in the future. 2. The cost of capital is based on the return that a company should achieve. This number should be equal to or higher than the market value; otherwise, it would be below and not meet its goals. For investors, this is a critical point because if there is a significant increase in the cost of capital, the company's value grows, and therefore investors are satisfied; on the other hand, if the results are below the market, investors will be at risk of loss. Finally, the cost of capital is a great help for the company to see where they stand and how to continue to improve and analyze the returns on their investments. As mentioned above, the cost of capital is essential not only for the company but also for investors and future investors. If the results are as expected, everyone will be in the place they want the stable company to be for investors happy to know that their money is working and for future investors to make sure they are making the right decision. The weighted average cost of capital (WACC) results from a combination of sources of funds, including common stock, bonds, preferred stock, and any other long-term debt. The WACC can have changed, and this is because it increases the beta and the rate of return on equity. And this is because there is an increased risk as its value decreases. For investors, the WACC result is significant because if it is lower than the return, the investment is worthless, but the investors would be making the right decision if it is higher.