         .attr('cx', (data) -> xScale(data.x))
         .attr('cy', (data) -> yScale(data.y))
         .attr('data-tooltip-text', (data) =>
-          "COP #{Metric.round_number(data.y, 2)}, " +
-          "#{Metric.round_number(data.x, 2)} #{@model.get('unit')} "
+          "COP #{Metric.round_number(data.x, 2)}, " +
+          "#{Metric.round_number(data.y, 2)} #{@model.get('unit')} "
         )
 
       @drawLegend(@model.non_target_series().concat(@model.target_series()), 2)

D3.hhp_cop_cost =
  View: class extends D3ChartView
    COP_LIST = [1, 2, 3, 4, 5, 6]

    initialize: ->
      D3ChartView.prototype.initialize.call(this)

        .style("text-anchor", "end")
        .text(@model.get('unit'))

      scale

    createYAxis: (scale) ->
