if at the current level of output, average total cost (atc) is rising, which of the following could be the reason?

Madeline quits her job, at which she was earning $20,000 per year. she then takes $50,000 out of savings, on which she was earning 10% interest, and uses it to buy supplies for her business. she also pays $10,000 in rent on the building and $15,000 in additional labor costs. in her first year of operations, madeline receives $150,000 in revenue from sales. instructions: round each answer to a whole number. madeline's accounting cost is