While Compiling I Am Getting Warning C4305: 'Argument' : Truncation From 'Int' To 'Char'. How To Clear It

int rtg_qty=0;
int vtg_qty=0;
int first_qty=0;
int next_qty=0;
int loaded_qty=0;
int preset_qty=0;
int balance=0;
char    buffer[20];
//char buf[25];
CString eProd;
    if( !strncmp(Reply,"RT G",4) ){
        memset(buffer,0x00,sizeof(buffer));
        strncpy(buffer,&Reply[14],9);
        rtg_qty = atol(buffer);
        if( rtg_qty ) {
            first_qty = accu_ptr->lFirstQty;
            next_qty = accu_ptr->lNextQty;

            if( next_qty < first_qty )
                vtg_qty = (1000000000 - first_qty) + next_qty;
            else
                vtg_qty = next_qty - first_qty;

            loaded_qty = vtg_qty + rtg_qty;

            accu_ptr->lLoadedQty = loaded_qty;
            trk_ptr->lLoadedQty[accu_ptr->cCompNo-1] = loaded_qty + accu_ptr->lLastBatchQty;
             eProd.Format("%d", trk_ptr->iaProdType[accu_ptr->cCompNo - 1]);
             //accu_ptr->shAvgTemp = 0;
             if(eProd == 17840 || eProd == 17600 || eProd == 17860 || eProd == 17400)
            {
                accu_ptr->shAvgTemp = ((accu_ptr->lLoadedQty / 100) * 5);
            }
    //      sprintf(buf,"%d",accu_ptr->lLoadedQty);
    //      AfxMessageBox(buf);
        }
        accu_ptr->shAcculoadState++;
    }
    else{
        accu_ptr->shAcculoadState--;
    }

    preset_qty = accu_ptr->lToLoadQty;
    balance    = preset_qty - trk_ptr->lLoadedQty[accu_ptr->cCompNo - 1];
    sprintf(accu_ptr->caDispMsg,"%6ld LIT P%6ld %6ld",trk_ptr->lLoadedQty[accu_ptr->cCompNo-1],preset_qty,balance);
    accu_ptr->fpercentage = ((float)trk_ptr->lLoadedQty[accu_ptr->cCompNo - 1] / (float)trk_ptr->lPresetQty[accu_ptr->cCompNo - 1]) * 100;
    trk_ptr->fpercentage [accu_ptr->cCompNo - 1] = accu_ptr->fpercentage ;
//  accu_ptr->shLoadedPercent = ((float)trk_ptr->lLoadedQty[accu_ptr->cCompNo - 1] / (float)trk_ptr->lPresetQty[accu_ptr->cCompNo - 1]) * 100;
//  trk_ptr->shLoadedPercent [accu_ptr->cCompNo - 1] = accu_ptr->shLoadedPercent ;
    return;
}