// Updates the finishing set public void UpdateFinishingSet(string firstCombo, string secondCombo, BikeStock stock) { double temp = 0; if (stock.FinishingSetCost != 0) { Cost = Cost - stock.FinishingSetCost; } temp = stock.FinishingSet(firstCombo, secondCombo); Cost += temp; stock.FinishingSetCost = temp; }