Could you help me with this problem please? Thank you

Ram Roy’s firm has developed the following supply , demand , cost , and invenand inventory dataSupply AvailableRegularDemandPeriodTimeOvertime SubcontractForecast503030Initial inventory30 unitsRegular – time cost per unit$100Overtime cost per unit$150Subcontract cost per unit$250Carrying cost per unit per month$2Assume that the initial inventory has no holding cost in the first period and backorders are not permittedAllocating production capacity to meet demand at a minimum cost using the transportation method , the total cost is S ( enter your response as a whole number )