Answer the questions by using the SEC websites 10K

6% decrease in sales in 2014-15- They had a series of decreases in their divisions which was offset by
Why a 25.1% decrease in sales 2014-2015
Why a 2.5% increase in sales 2015-2016
Why a 8.6% increase in sales 2016-2017- They had a series of decreases in their divisions due to volume and sales prices in acquisitions
Why a 1.7% increase in GPM 2013-2014
Why a 1.3% in ROS 2013-2014
Why do you see a downward trend in ROS from 2.8% to 2.1% 2014-2016
Why an increase of .6% in ROS in 2017? – The effect of changes in agricultural commodity prices on LIFO inventory valuation reserves had a $2 million positive impact on gross profit compared to a negative impact of $19 million in the prior year. Equity in earnings of unconsolidated affiliates increased $164 million to $456 million primarily due to higher earnings from the Company’s investment in Wilmar resulting from the increased ownership stake in and higher results from Wilmar and improved results from the Company’s equity investment in CIP, partially offset by losses from a new equity investment and decreased earnings resulting from the disposal of an equity investment.
ROA Why a decrease 5.1% to 3.8% from 2014-2015
ROA- Why a increase from 3.2% to 4.6% (2016-17) ?
Similar ques to ROA for ROE.