using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace YLErp.Helpers
{
    public static class TradeFeeHelper
    {
        /// <summary>
        /// 计算含费价格
        /// </summary>
        /// <param name="fee"></param>
        /// <param name="price"></param>
        /// <param name="qty"></param>
        /// <param name="deriction"></param>
        /// <returns></returns>
        public static decimal CalcPriceWithFee(decimal fee, decimal price, decimal qty,int deriction)
        {
            if (qty == 0)
            {
                return 0;
            }
            decimal derictionFlag = deriction == 1 ? 1 : -1;
            decimal priceFee = (price * qty + fee* derictionFlag) / qty;
            return priceFee;
        }
    }
}