public bool Contains(PercentItem value)
 {
     return(base.List.Contains(value));
 }
 public int IndexOf(PercentItem value)
 {
     return(base.List.IndexOf(value));
 }
 public void Remove(PercentItem value)
 {
     base.List.Remove(value);
 }
 public void Insert(int index, PercentItem value)
 {
     base.List.Insert(index, value);
 }
 public int Add(PercentItem value)
 {
     return(base.List.Add(value));
 }
 public double GetItemPercent(PercentItem value)
 {
     return(this.GetItemPercent(this.IndexOf(value)));
 }