Suppose the price level for the country above was 110 in 2014 and 115 in 2015. Also, suppose nominal GDP in 2014 was $13,974 billion and nominal GDP in 2015 was $17,937 billion. Which of the following statements is not correct?

The owner of firewood to go is considering buying a hydraulic wood splitter which sells for $50,000. he figures it will cost an additional $100 per cord to purchase and split wood with this machine, while he can sell each cord of split wood for $125. if, for this machine, design capacity is 50 cords per day, effective capacity is 40 cords per day, and actual output is expected to be 32 cords per day, what would be its efficiency?