/// <summary>
/// The difference between <see cref="TotalBuyVolume"/> and <see cref="TotalSellVolume"/>.
/// </summary>
/// <param name="volumeProfile">Volume profile.</param>
/// <returns>Delta.</returns>
public static decimal Delta(this VolumeProfileBuilder volumeProfile)
{
return(volumeProfile.TotalBuyVolume() - volumeProfile.TotalSellVolume());
}
