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

				Operating	Operating	Operating
				Income /	Revenues /	Income /
	Operating	Operating	Total	Operating	Total	Total
	Income	Revenues	Assets	Revenues	Assets	Assets
Test Preparation Division
2015	$690	$9,200	$1,840	?	?	?
2016	850	?	?	10%	?	40%
2017	1,150	?	?	12.5%	4.0	?
Language Arts Division
2015	$600	$2,400	$1,600	?	?	?
2016	?	3,750	2,500	20%	?	?
2017	?	?	2,500	?	2.0	25%
Online Learning Inc.
2015	$1,290	$11,600	$3,440	?	?	?
2016	?	?	?	?	?	?
2017	?	?	?	?	?	?

Requirements

1.	Complete the table by filling in the blanks.
2	Use the DuPont method of profitability analysis to explain changes in theoperating-income-to-total-assets ratios over the 2015----2017 period for each division and for Online Learning as a whole. Comment on the results.