How do I write the formula to add individual spark-lines to embed/show trends in each active field? I want one for each row of data in columns I 'Trends'

I just want to know how to properly construct the formula to embed individual sparkline trends.

	2012	2013	2014	2015	2016F	Benchmark1	TREND
Revenue growth	2.9%	2.4%	12.5%	15.5%	30.0%	(1.8)%	=TREND(B7:G7,G7:G10,J7:J10,G7)
Gross margin (Gross profit / Revenue)	48.9%	46.9%	51.8%	52.0%	49.9%	48.9%
Operating margin (Op. profit / Revenue)	6.4%	4.8%	8.6%	9.5%	8.2%	7.6%
Net profit margin (Net profit / Revenue)	4.1%	3.1%	5.7%	5.8%	5.0%	2.8%
Return on assets (Net profit / Total assets)	3.2%	2.4%	4.7%	5.1%	4.4%	2.9%
Return on capital (Net profit / Total capital)	3.3%	2.5%	4.8%	5.4%	5.7%	4.0%
Receivable days (AR / Revenue * 365)	41.9	45.0	48.0	50.9	52.9	21.8
Inventory days (Inventory / COGS * 365)	424.2	432.1	436.5	476.3	441.7	386.3
Payable days (AP / Purchases * 365)	15.6	13.3	10.2	9.9	11.3	26.9
NFA turnover (Revenue / NFA)	2.4	2.4	2.4	3.0	3.6	2.7