Could someone please help me calculate the following:

Suppose that two years later costs and process were falling. Under FIFO, net income and average assets were $1,800,000 and $12,000,000, respectively. If LIFO. and current year cost of goods sold would have been $100,000 less than under FIFO. Calculate the firm's ROI under each cost flow assumption (FIFP and LIFO). (Enter your answers as percentages rounded to 1 decimal place (i.e., 12.2%).)

FIFO LIFO

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ROI % %