public List <OutputDataAmortization> calculateBalanceAndResidual()
{
List <OutputDataAmortization> result = null;
if (input != null)
{
if (input.PercentageRate == null)
{
double cbuf = (input.CurrencyRate + input.Digression) / (input.Value + input.Digression);
cbuf = Math.Pow(cbuf, 1.0d / input.NumberOfYears);
input.PercentageRate = (1 - cbuf) * 100;
}
else
{
input.CurrencyRate = input.Value * Math.Pow(1.0d - ((double)input.PercentageRate / 100.0d), input.NumberOfYears);
}
double buf = (double)input.PercentageRate / 100.0d;
//if B is not used, it is zero and is equivalent (almost) to prevRn = A
double prevModifiedRn = input.Value + input.Digression;
//real value of Rn, calculated on each iteration as Rn = Rn - Dn, Dn calculated with modified parameters
double rn = input.Value;
result = new List <OutputDataAmortization>();
for (uint i = 1; i <= input.NumberOfYears; i++)
{
OutputDataAmortization output = new OutputDataAmortization();
output.NumberOfYear = i;
double modifiedRn = prevModifiedRn * (1 - buf);
output.Balance = prevModifiedRn - modifiedRn;
prevModifiedRn = modifiedRn;
output.AmortizationSum = rn - output.Balance;
rn = output.AmortizationSum;
result.Add(output);
}
}
return(result);
}
public List <OutputDataAmortization> calculateValueOfAcquisitions()
{
List <OutputDataAmortization> result = null;
if (input != null)
{
if (input.PercentageRate == null)
{
input.PercentageRate = (float)((((input.Value - input.CurrencyRate) / input.NumberOfYears) / input.Value) * 100.0d);
}
else
{
input.CurrencyRate = input.Value - input.NumberOfYears * (input.Value * ((double)input.PercentageRate / 100.0d));
}
double buf = (double)input.PercentageRate / 100.0d;
double balance = input.Value * buf;
result = new List <OutputDataAmortization>();
for (uint i = 1; i <= input.NumberOfYears; i++)
{
OutputDataAmortization output = new OutputDataAmortization();
output.NumberOfYear = i;
output.Balance = balance;
output.AmortizationSum = input.Value * (1.0d - i * buf);
/*if (output.AmortizationSum < -1e-10)
* {
* "Балансовата стойност Rn става птрицателна в година";
* break;
* }*/
result.Add(output);
}
}
return(result);
}