// StockRatio를 NextStockRatio로 갱신
public void UpdateStockRatio()
{
LastStockPrice = StockPrice;
StockPrice = (long)(StockPrice * (1f + NextStockRatio * 0.01f));
StockRatio = NextStockRatio;
NextStockRatio = 0;
// ListViewItem 데이터 업데이트
ReferenceStock.SubItems[StockColumType.StockPrice.ToString()].Text = StockPrice.ToString("N0");
ReferenceStock.SubItems[StockColumType.StockRatio.ToString()].Text = StockRatio.ToString("N2") + "%";
}
