There is a lot of doom and gloom on the boards but there are some over-exaggerated reactions to the box office. According to box office sources (such as Box Office Mojo), the film has a worldwide total of 160 million. While this is not a tremendous success, if it reaches the 180 million mark, that would be in break-even territory. It is rare for films to triple or quadruple its production budget.
While Chinese box office receipts are not very helpful (American firms recoup only 25% of the box office in China), they will add to the total.
I see that many people are blaming Fox, Fassbender, Scott, or whoever for not meeting financial expectations. However, that ignores box office trends for the last several years. Only a handful of films generate most of the box office revenue today. Most movies account for only a small minority of the box office tickets sold. Prices have been rising (including 3D add-ons) while American movie attendance has been declining or flatlining for over a decade. These are major movie business trends that are affecting the industry at large - Alien: Covenant is only one example of a larger issue in film economics. This is not specific to this movie - the industry and business is undergoing massive changes and will have to evolve within the next decade or so.