Learning World Inc. has two divisions: Test Preparation and Language Arts. Results (in millions) for the past three years are partially displayed here:

Required
1. Complete the table by filling in the blanks.
2. Use the DuPont method of profitability analysis to explain changes in the operating-income to-total-assets ratios over the 2013 through 2015 period for each division and for Learning World as a whole. Comment on the results.

Operating Operating Income Operating Income Operating Operating Tota OperatingRevenuel Total Income Revenue Assets Revenue Total AssetsAssets 2 Test Preparation Division S 680$ 7,960 $1,920 2013 2014 2015 1096 11% 1,160 6Lanquage Arts Department S 620 $ 2,360 S1.280 3,0001,800 2,340 2013 2014 2015 Learning World Inc. 2013 2014 2015 25% 10 $1,300$10,320 $3,200 13