Vista Company manufactures electronic equipment. In 2021. It purchased from an outside supplier the special switches used in each ot its products. The supplier charged Vista $2.80 per switch. As an alternative, Vista's CEO considered purchasing either machine A or machine B so the company could manufacture its own switches. The CEO decided at the beginning of 2022 to purchase machine A based on the following data: Machine A $ 143,000 0.80 0.35 Annual fixed cost (depreciation) Machine B $ 212,000 Variable cost per switch Required: 1. Assume that machine A has not yet been purchased. What is the annual volume that would make the company indifferent between the two decision alternatives (le purchasing and then using machine A to make the switches versus purchasing the switches from the outside vendor)? 2. Assume that machine A has already been purchased. Is it preferable to use machine A to make the switches or to purchase the switches from the external supplier? 3. Assume that machine A has already been purchased. At what annual volume level should Vista consider replacing machine A with machine B? Complete this question by entering your answers in the tabs below. Required 1 Required 2 Required 3 Assume that machine A has not yet been purchased. What is the annual volume that would make the company indifferent between the two decision alternatives (le, purchasing and then using machine A to make the switches versus purchasing the switches from the outside vendor)? (Do not round intermediate calculations. Round your final answer up to the nearest whole number) Indifference point units/year Complete this question by entering your answers in the tabs below. Required 1 Required 2 Required 3 Assume that machine A has already been purchased. Is it preferable to use machine A to make the switches or to purchase the switches from the external supplier? Use machine A to make the switches Purchase the switches from the external supplier Complete this question by entering your answers in the tabs below. Required 1 Required 2 Required Assume that machine A has already been purchased. At what annual volume level should Vista consider replacing machine A with machine B? (Do not round Intermediate calculations, Round your final answer up to the nearest whole number) Volume level 471,111 units per year)