In 2018, Hopyard Lumber changed its inventory method from LIFO to FIFO. Inventory at the end of 2017 of $101,000 would have been $118,000 if FIFO had been used. Inventory at the end of 2018 is $136,000 using the new FIFO method but would have been $123,000 if the company had continued to use LIFO. What is the effect of the change on 2018 cost of goods sold?

2018 cost of goods sold is