Use the data in exercise E6-16 to illustrate Langley's income tax advantage from using weighted-average cost over

Question:

Use the data in exercise E6-16 to illustrate Langley's income tax advantage from using weighted-average cost over FIFO cost. Sales revenue is $6,000, operating expenses are $1,100, and the income tax rate is 25%. How much in taxes would Langley save by using the weighted-average-cost method versus FIFO?