BIOFORCE NANOSCIENCES HOLDINGS, INC. (BFNH) › Cost of RevenueBIOFORCE NANOSCIENCES HOLDINGS, INC. (BFNH) — Cost of RevenueAnnual figures by fiscal year, from SEC filings.2017: $3.2K2018: $11.6K2019: $13.4K$13.4K2017Cost of Revenue (USD)2019Fiscal YearCost of RevenueChange YoY2019$13.4K+15.2%2018$11.6K+258.9%2017$3.2K—Other metrics: RevenueGross ProfitOperating IncomeNet IncomeEPS (Diluted)Total AssetsTotal LiabilitiesShareholders' EquityCash & EquivalentsOperating Cash FlowCapital ExpendituresShares OutstandingDividends Per Share