/// <summary>
/// Calculate amoritized capital service costs
/// </summary>
/// <param name="calculatorType"></param>
/// <param name="i"></param>
/// <param name="timePeriods"></param>
/// <param name="plannedUsePeriods"></param>
/// <param name="usefulLifePeriods"></param>
/// <param name="realRate"></param>
/// <param name="timeType"></param>
/// <param name="sumCosts"></param>
/// <param name="sumOutputs"></param>
/// <param name="amortizedAvgCostperPeriod"></param>
public static void CalcAmortizdServiceCosts(AgBudgetingHelpers.CALCULATOR_TYPES calculatorType,
int i, int timePeriods, int plannedUsePeriods, int usefulLifePeriods,
double realRate, GeneralRules.TIME_TYPES timeType, double sumCosts, double sumOutputs,
out double amortizedAvgCostperPeriod)
{
amortizedAvgCostperPeriod = 0;
double dbAnnuityFactor = 0;
//new machinery
if (timePeriods > 1)
{
//convert to annuity
dbAnnuityFactor = GeneralRules.CapRecovFactor(timePeriods, realRate, 0);
sumCosts = sumCosts * dbAnnuityFactor;
if (timeType == GeneralRules.TIME_TYPES.costsvary)
{
amortizedAvgCostperPeriod = sumCosts / plannedUsePeriods;
}
else if (timeType == GeneralRules.TIME_TYPES.costsandoutputsvary)
{
if (sumOutputs == 0)
{
//shouldn't be using outputs
amortizedAvgCostperPeriod = sumCosts / plannedUsePeriods;
}
else
{
amortizedAvgCostperPeriod = sumCosts / (sumOutputs / timePeriods);
}
}
}
else
{
if ((i == 3) && (calculatorType == AgBudgetingHelpers.CALCULATOR_TYPES.agmachinery))
{
amortizedAvgCostperPeriod = sumCosts / usefulLifePeriods;
}
else
{
amortizedAvgCostperPeriod = sumCosts / plannedUsePeriods;
}
}
}
/// <summary>
/// Calculate used machinery repair costs
/// </summary>
/// <param name="calculatorType"></param>
/// <param name="timeUsed"></param>
/// <param name="timePeriods"></param>
/// <param name="plannedUsePeriods"></param>
/// <param name="startingPeriods"></param>
/// <param name="remainingPeriods"></param>
/// <param name="realRate"></param>
/// <param name="inflationRate"></param>
/// <param name="timeType"></param>
/// <param name="RF1"></param>
/// <param name="RF2"></param>
/// <param name="OC3Amount"></param>
/// <param name="sumCosts"></param>
/// <param name="sumOutputs"></param>
/// <param name="sumUsedCost"></param>
/// <param name="amortizedAvgCostperPeriod"></param>
public static void CalcUsedMachineryRepairCosts(AgBudgetingHelpers.CALCULATOR_TYPES calculatorType, int timeUsed, int timePeriods, int plannedUsePeriods,
int startingPeriods, int remainingPeriods, double realRate, double inflationRate, GeneralRules.TIME_TYPES timeType,
double RF1, double RF2, double OC3Amount, double sumCosts, double sumOutputs, double sumUsedCost,
out double amortizedAvgCostperPeriod)
{
amortizedAvgCostperPeriod = 0;
double dbAnnuityFactor = 0;
//repair costs for used machinery
if (timePeriods > 1)
{
//only difference is the period over which the amortization takes place -note: this is ad hoc
//sumCosts = sumCosts;
//amortize this remainder over the remaining service life of the equipment
dbAnnuityFactor = GeneralRules.CapRecovFactor((timePeriods - timeUsed), realRate, 0);
sumCosts = sumCosts * dbAnnuityFactor;
if (timeType == GeneralRules.TIME_TYPES.costsvary)
{
amortizedAvgCostperPeriod = sumCosts / plannedUsePeriods;
}
else if (timeType == GeneralRules.TIME_TYPES.costsandoutputsvary)
{
if (sumOutputs == 0)
{
//shouldn't be using outputs
amortizedAvgCostperPeriod = sumCosts / plannedUsePeriods;
}
else
{
//simple avg unit cost - or use a particular year in ui
amortizedAvgCostperPeriod = sumCosts / (sumOutputs / timePeriods);
}
}
else
{
//the used costs will not have been set in for...next loop, set it here
if (calculatorType == AgBudgetingHelpers.CALCULATOR_TYPES.agmachinery)
{
sumUsedCost = (((RF1 * OC3Amount) * System.Math.Pow((startingPeriods / 1000.00), RF2))) * (1 + inflationRate);
amortizedAvgCostperPeriod = (sumCosts - sumUsedCost) / remainingPeriods;
}
else
{
amortizedAvgCostperPeriod = (sumCosts) / plannedUsePeriods;
}
}
}
else
{
//12/9 : the costsdonotvary sets timeperiod to 1
//the used costs will not have been set in for...next loop, set it here
if (calculatorType == AgBudgetingHelpers.CALCULATOR_TYPES.agmachinery)
{
sumUsedCost = (((RF1 * OC3Amount) * System.Math.Pow((startingPeriods / 1000.00), RF2))) * (1 + inflationRate);
amortizedAvgCostperPeriod = (sumCosts - sumUsedCost) / remainingPeriods;
}
else
{
amortizedAvgCostperPeriod = (sumCosts) / plannedUsePeriods;
}
}
}
