private void IntOnly()
{
var jawaInvestment = (Investment.GetAllInvestmet() ?? new List <Investment>()).Sum(s => s.Interest);
btnIntOnly.Text = $"Interest Only Income: {Environment.NewLine}{jawaInvestment}";
}
private void ComPanyInv()
{
var jawaInvestment = (Investment.GetAllInvestmet() ?? new List <Investment>()).Where(w => w.InvestType == InvestmentFrom.Company).Sum(s => s.Amount);
btnComPanyInv.Text = $"OutGoing From Company: {Environment.NewLine}{jawaInvestment}";
}