Catculate the degree of operating leverage, financial leverage, and the combined leverage from the following data: Sales $1,00,000$ units @ Rs$.2$ per unit$=$Rs$\mathrm{.}2,00,000.$ Variable cost per unit@Rs$\mathrm{.}0\mathrm{.}70.$ Fixed cost Rs$.1,00,000.$ Interest charges Rs$.3668.$