ZHEN DING RESOURCES INC. (RBTK) › Cost of RevenueZHEN DING RESOURCES INC. (RBTK) — Cost of RevenueAnnual figures by fiscal year, from SEC filings.Fiscal YearCost of RevenueChange YoY2014$471.8K—Other metrics: RevenueGross ProfitOperating IncomeNet IncomeEPS (Diluted)Total AssetsTotal LiabilitiesShareholders' EquityCash & EquivalentsOperating Cash FlowCapital ExpendituresShares OutstandingDividends Per Share