/// <summary>
/// 计算每月实际还款
/// </summary>
/// <param name="FRealLoanAmount">实际贷款额</param>
/// <param name="FLoanPeriod">按揭期限</param>
/// <param name="BankEnum">银行枚举</param>
/// <returns>计算结果值</returns>
public static CalculationResult GetFRealMonthPayAmount(decimal FEvaluatePrice, decimal FMonthPayAmount, Int32 FLoanPeriod, decimal FLoanAmount, decimal FBankRate, Int32 iSCeiling)
{
CalculationResult r = new CalculationResult();
try
{
// var z = (FLoanAmount * (100 + (((FMonthPayAmount * FLoanPeriod / FLoanAmount) - 1)
// * 100)) / (100 + FBankRate)); //实际贷款额
var k = (((FLoanAmount * (100 + (((FMonthPayAmount * FLoanPeriod / FLoanAmount) - 1) * 100)) / (100 + FBankRate)) * ((FBankRate / 100) + 1)) / FLoanPeriod);
if (iSCeiling == 1)
{
r.Result = Math.Ceiling(k);
}
else
{
r.Result = Math.Floor(k);
}
}
catch (Exception ex)
{
r.ex = ex;
r.ErrorInfo = "系统计算错误!";
}
return(r);
}
/// <summary>
/// 计算首付比例
/// </summary>
/// <param name="FCarAmount">车价</param>
/// <param name="FEvaluatePrice">评估价</param>
/// <param name="FMonthPayAmount">月还款</param>
/// <param name="FLoanPeriod">按揭期限</param>
/// <param name="FLoanAmount">贷款金额</param>
/// <param name="FBankRate">银行利率</param>
/// <returns>执行结果</returns>
public static CalculationResult GetFFirstPayAmountRatio(decimal FEvaluatePrice, decimal FCarAmount, decimal FMonthPayAmount, Int32 FLoanPeriod, decimal FLoanAmount, decimal FBankRate)
{
CalculationResult r = new CalculationResult();
try
{
r.Result = Math.Round((((FEvaluatePrice - ((FLoanAmount * (100 + (((FMonthPayAmount * FLoanPeriod / FLoanAmount) - 1) * 100)) / (100 + FBankRate)))) / FCarAmount) * 100), 2);
}
catch (Exception ex)
{
r.ex = ex;
r.ErrorInfo = "系统计算错误!";
}
return(r);
}
/// <summary>
/// 计算实际贷款利率
/// </summary>
/// <param name="FMonthPayAmount">月还款</param>
/// <param name="FLoanPeriod">按揭期限</param>
/// <param name="FLoanAmount">贷款金额</param>
/// <returns>计算结果值</returns>
public static CalculationResult GetFRealLoanRate(decimal FMonthPayAmount, decimal FLoanPeriod, decimal FLoanAmount)
{
CalculationResult r = new CalculationResult();
try
{
r.Result = ((FMonthPayAmount * FLoanPeriod / FLoanAmount) - 1) * 100;
}
catch (Exception ex)
{
r.ex = ex;
r.ErrorInfo = "系统计算错误!";
}
return(r);
}
/// <summary>
/// 获取银行手续费
/// </summary>
/// <param name="FEvaluatePrice">评估价</param>
/// <param name="FMonthPayAmount">月还款</param>
/// <param name="FLoanPeriod">按揭期限</param>
/// <param name="FLoanAmount">贷款金额</param>
/// <param name="FBankRate">银行利率</param>
/// <returns>计算结果值</returns>
public static CalculationResult GetFBankFee(decimal FEvaluatePrice, decimal FMonthPayAmount, Int32 FLoanPeriod, decimal FLoanAmount, decimal FBankRate)
{
CalculationResult r = new CalculationResult();
try
{
//var z = (FLoanAmount * (100 + (((FMonthPayAmount * FLoanPeriod / FLoanAmount) - 1) * 100)) / (100 + FBankRate)); //实际贷款额
r.Result = Math.Round(((FLoanAmount * (100 + (((FMonthPayAmount * FLoanPeriod / FLoanAmount) - 1) * 100)) / (100 + FBankRate)) * FBankRate) / 100, 2);
}
catch (Exception ex)
{
r.ex = ex;
r.ErrorInfo = "系统计算错误!";
}
return(r);
}
/// <summary>
/// 计算上浮比例
/// </summary>
/// <param name="FEvaluatePrice">评估价</param>
/// <param name="FCarAmount">车价</param>
/// <returns>计算结果值</returns>
public static CalculationResult GetFEvaluatePriceRatio(decimal FEvaluatePrice, decimal FCarAmount)
{
CalculationResult r = new CalculationResult();
try
{
var re = (FEvaluatePrice - FCarAmount);
if (re < 0)
{
r.Result = 0;
}
var k = (re / FEvaluatePrice) * 100;
r.Result = k;
}
catch (Exception ex)
{
r.ex = ex;
r.ErrorInfo = "系统计算错误!";
}
return(r);
}
/// <summary>
/// 实际贷款额
/// </summary>
/// <param name="FLoanAmount">贷款金额</param>
/// <param name="FMonthPayAmount">月还款</param>
/// <param name="FLoanPeriod">按揭期限</param>
/// <param name="FBankRate">银行利率</param>
/// <returns>执行结果</returns>
public static CalculationResult GetFRealLoanAmount(decimal FLoanAmount, decimal FMonthPayAmount, Int32 FLoanPeriod, decimal FBankRate, int FLoanBank)
{
CalculationResult r = new CalculationResult();
decimal FLoanRate = Math.Round(FMonthPayAmount * FLoanPeriod / FLoanAmount - 1, 5, MidpointRounding.AwayFromZero);
decimal a = Math.Ceiling(FLoanAmount * Math.Round((Math.Ceiling(FLoanRate * 1000000) / 1000000 + 1), 5, MidpointRounding.AwayFromZero) / (FBankRate / 100 + 1)) % 2;
try
{
if (FLoanBank == 20)
{
r.Result = Math.Ceiling(FLoanAmount * Math.Round((Math.Ceiling(FLoanRate * 1000000) / 1000000 + 1), 5, MidpointRounding.AwayFromZero) / (FBankRate / 100 + 1));
}
else if (FLoanBank == 3)
{
r.Result = Math.Round(FLoanAmount * Math.Round((Math.Ceiling(FLoanRate * 1000000) / 1000000 + 1), 5, MidpointRounding.AwayFromZero) / (FBankRate / 100 + 1) / 100, 0, MidpointRounding.AwayFromZero) * 100;
}
else
{
if (a == 1)
{
r.Result = Math.Ceiling(FLoanAmount * Math.Round((Math.Ceiling(FLoanRate * 1000000) / 1000000 + 1), 5, MidpointRounding.AwayFromZero) / (FBankRate / 100 + 1)) + 1;
}
else
{
r.Result = Math.Ceiling(FLoanAmount * Math.Round((Math.Ceiling(FLoanRate * 1000000) / 1000000 + 1), 5, MidpointRounding.AwayFromZero) / (FBankRate / 100 + 1));
}
}
//decimal k=((FMonthPayAmount*FLoanPeriod/FLoanAmount)-1)*100 //实际贷款利率
//r.Result = Math.Ceiling((FMonthPayAmount * FLoanPeriod * 100) / (100 + FBankRate));
//r.Result = ((FLoanAmount) * (100 + (((FMonthPayAmount * FLoanPeriod / FLoanAmount) - 1) * 100))) / (100 + FBankRate);
}
catch (Exception ex)
{
r.ex = ex;
r.ErrorInfo = "系统计算错误!";
}
return(r);
}