private void UpdateCosts() { Currencies currency = SettingsHelper.GetCurrency(); AllCosts.ItemsSource = DBFunctions.GetAllCosts(); double tCost = CostConversions.TotalCost(currency); ColourTV(tCost, CstTotal); if (tCost < 0) { tCost = -tCost; } CstTotal.Text = DefaultVars.currency[(int)SettingsHelper.GetCurrency()] + tCost.ToString(DefaultVars.costFormat); }