["    const formatNumber = (num","      num = Number(num);","      const oneB = 1000000000;","      const oneM = 1000000;","      const oneK = 1000;","      if (num > 0) {","        // convert to thousand","        if (convertToMillions) {","          num = num / oneM;","        }","        num = num \\* oneK;","        if (num >= oneM) {","          return Highcharts.numberFormat(num / oneM","        } else if (num >= oneK) {","          return Highcharts.numberFormat(num / oneK","        } else {","          return Highcharts.numberFormat(num","        }","      } else {","        return num;","      }","    };"]