[Solved]-ChartsJS make number in middle for only one chart-Chart.js

You could create another variable inside of the options of each chart that could be checked inside of your plugin function. Then add the text based on that extra option variable.

Option in chart:

 options: {
    chartExtraOption: 1,

The if statement in plugin:

Chart.pluginService.register({
beforeDraw: function(chart) {
    var width = chart.chart.width,
        height = chart.chart.height,
        ctx = chart.chart.ctx;

    ctx.clearRect(0, 0, width, height);
    ctx.restore();
    var fontSize = (height / 114).toFixed(2);
    ctx.font = fontSize + "em lato";
    ctx.fillStyle = "rgba(0,0,0, 0.85)"
    ctx.textBaseline = "middle";

            if (chart.config.options.chartExtraOption == 1) {
                var textX = Math.round((width-ctx.measureText(text).width)/1.1),
        textY = height / 2.5,
        text = 60;
            ctx.fillText(text, textX, textY);
        ctx.save();
        }
    else{
            var textX = Math.round((width-ctx.measureText(text).width)/1.1),
        textY = height / 2.5,
        text = 40;
            ctx.fillText(text, textX, textY);
        ctx.save();
    }
}
}); 

Here is the changed fiddler you had: https://jsfiddle.net/bozhfmq6/1/