[Solved]-Hightcharts: Set series label in last point-Highcharts

You can use data labels instead of series labels.

Example:

    plotOptions: {
        series: {
            dataLabels: {
                enabled: true,
                formatter: function() {
                    if (this.point.index === this.series.points.length - 1) {
                        return this.series.name;
                    }
                }
            },
            ...
        }
    }

Live demo: https://jsfiddle.net/BlackLabel/9ps2ckhr/

API Reference: https://api.highcharts.com/highcharts/plotOptions.series.dataLabels