A $0\mathrm{.}1888g$ sample of a hydrocarbon produces $0\mathrm{.}6260$gCO$2$ and $0\mathrm{.}1602gH2O$ in combustion analysis. Its molecular mass is found to be $106$ a$.$m$.$u$.$ What is the mass percent of carbon in this hydrocarbon? Hydrocarbons contain only $C$ and $H.$ Give answer in $\%.$