calculate the following financial ratios

a. return on equity (2007 and 2013)

b. return on assets (2007 and 2013)

Net sales Cost of sales Gross margin Research & development expense Net income (loss) Total shareholders' equity FY 2013 FY 2012 FY 2011 FY 2010 FY 2009 FY 2008 FY 2007 9/28/2013 9/29/2012 9/24/2011 9/25/2010 9/26/2009 9/27/2008 9/29/2007 170,910,000 156,508,000 108,249,000 65,225,000 36,537,000 32,479,000 24,006,000 106,606,000 87,846,000 64,431,000 39,541,000 23,397,000 21,334,000 15,852,000 64,304,000 68,662,000 43,818,000 25,684,000 13,140,000 11,145,000 8,154,000 4,475,000 3,381,000 2,429,000 1,782,000 1,333,000 1,109,000 782,000 37,037,000 41,733,000 25,922,000 14,013,000 5,704,000 4,834,000 3,496,000 123,549,000 118,210,000 76,615,000 47,791,000 27,832,000 21,030,000 14,532,000 FY 2006 FY 2005 9/30/2006 9/24/2005 19,315,000 13,931,000 13,717,000 9,888,000 5,598,000 4,043,000 712,000 534,000 1,989,000 1,335,000 9,984,000 7,466,000 Accounts receivable, net Accounts payable Inventories Land & buildings Cash equivalents Total assets 13,102,000 10,930,000 5,369,000 5,510,000 3,361,000 2,422,000 22,367,000 21,175,000 14,632,000 12,015,000 5,601,000 5,520,000 1,764,000 791,000 776,000 1,051,000 455,000 509,000 3,309,000 2,439,000 2,059,000 1,471,000 955,000 810,000 146,761,000 121,251,000 81,570,000 51,011,000 33,992,000 24,490,000 207,000,000 176,064,000 116,371,000 75,183,000 53,851,000 39,572,000 1,637,000 4,970,000 346,000 762,000 15,386,000 25,347,000 1,252,000 895,000 3,390,000 1,779,000 270,000 165,000 626,000 361,000 10,110,000 8,261,000 17,205,000 11,551,000 Full-time employees 80,300 72,800 60,400 46,600 34,300 32,000 21,600 17,787 14,800