BUTLER NATIONAL CORP (BUKS) › Cost of RevenueBUTLER NATIONAL CORP (BUKS) — Cost of RevenueAnnual figures by period end, from SEC filings.2010-04-30: $11.49M2011-04-30: $11.77M2012-04-30: $11.52M2013-04-30: $11.45M2014-04-30: $12.13M2015-04-30: $12.67M2016-04-30: $12.17M2017-04-30: $14.55M$14.55M2010-04-30Cost of Revenue (USD)2017-04-30Period endedCost of RevenueChange YoYSource filing2017-04-30$14.55M+19.5%2017-07-21From 2016-05-012016-04-30$12.17M-3.9%2017-07-21From 2015-05-012015-04-30$12.67M+4.5%2016-07-27From 2014-05-012014-04-30$12.13M+5.9%2015-07-29From 2013-05-012013-04-30$11.45M-0.6%2015-07-29From 2012-05-012012-04-30$11.52M-2.1%2014-07-29From 2011-05-012011-04-30$11.77M+2.4%2013-07-26From 2010-05-012010-04-30$11.49M—2012-07-30From 2009-05-01Other metrics: RevenueGross ProfitOperating IncomeNet IncomeEPS (Diluted)Total AssetsTotal LiabilitiesShareholders' EquityCash & EquivalentsOperating Cash FlowCapital ExpendituresShares OutstandingDividends Per ShareWeighted Average Diluted SharesEPS (Basic)