Highcharts - javascript - incorrect stacked column formatting - highcharts

Question

With highcharts, I am seeing an overlapping strange behaviour with stacked columns and "percent". You can see it here http://jsfiddle.net/nqjpkc05/, the code is below.
How could I fix it without changing the data structure?
the html
<script src="https://code.highcharts.com/highcharts.js"></script>
<script src="https://code.highcharts.com/modules/exporting.js"></script>
<div id="container" style="min-width: 310px; height: 400px; margin: 0 auto"></div>
And the js
Highcharts.chart('container', {
chart: {
type: 'column'
},
title: {
text: 'Stacked column chart'
},
xAxis: {
type: 'category',
},
yAxis: {
// min: 0,
//minRange:1,
title: {
text: 'Total fruit consumption'
},
stackLabels: {
enabled: true,
style: {
fontWeight: 'bold',
color: (Highcharts.theme && Highcharts.theme.textColor) || 'gray'
}
}
},
legend: {
align: 'right',
x: -30,
verticalAlign: 'top',
y: 25,
floating: true,
backgroundColor: (Highcharts.theme && Highcharts.theme.background2) || 'white',
borderColor: '#CCC',
borderWidth: 1,
shadow: false
},
tooltip: {
headerFormat: '<b>{point.x}</b><br/>',
pointFormat: '{series.name}: {point.y}<br/>Total: {point.stackTotal}'
},
plotOptions: {
column: {
grouping: true,
stacking: 'percent',
dataLabels: {
enabled: true,
color: (Highcharts.theme && Highcharts.theme.dataLabelsColor) || 'white'
}
}
},
series: [{
name: 'John',
data: [{info:'P1',name:0,x:0,y:27},{info:'P2',name:0,x:0,y:8},{info:'P3',name:0,x:0,y:3}]
}, {
name: 'Jane',
data: [{info:'P1',name:1,x:1,y:35},{info:'P2',name:1,x:1,y:6},{info:'P3',name:1,x:1,y:0}]
}, {
name: 'Joe',
data: [{info:'P1',name:2,x:2,y:12},{info:'P2',name:2,x:2,y:5},{info:'P3',name:2,x:2,y:18}]
}]
});

Answer 1

You can move the stack labels on top of the column on load/redraw event - the position can be obtain from point.shapeArgs property.
function positionStackLabels() {
const stacks = this.yAxis[0].stacks.column;
Object.keys(stacks).forEach(s => {
const series = this.series[s];
const topPoint = series.data[0];
stacks[s].label.attr({
y: topPoint.shapeArgs.y - 5
});
});
}
Set events:
chart: {
type: 'column',
events: {
load: positionStackLabels,
redraw: positionStackLabels
}
},
Live example and output
http://jsfiddle.net/mkfn5w15/