Chart.js ranking mode

I'm using Alexa API to get the websites Traffic History which helps to load the chart.js data sets, the problem is that the chart scale and labels should be in reverse to be compatible with ranking mode, for example, the value of 10000 should show a greater scale than 50000.

chartjs

While the results should be like this:

enter image description here

Chartjs setup code:

datacollection: ['19888', '12234'],
      labelscollection: ['2021-03-14', '2021-03-15'],
      options: {
        responsive: true,
        maintainAspectRatio: false,
        legend: {
          display: false,
        },
        elements: {
          point: {
            radius: 2
          },
          line: {}
        },
        tooltips: {
          displayColors: false,
          callbacks: {
            label: function (tooltipItem, data) {
              return tooltipItem.yLabel.toString().replace(/(\d)(?=(\d{3})+(?!\d))/g, '$1,')
            }
          }
        },
        scales: {}
      }
    }