Get Frequency × Monetary heatmap

{
    "subset": "all",
    "xDim": "m",
    "yDim": "f",
    "size": 5,
    "cells": [
        {
            "r": 1,
            "f": 4,
            "m": 5,
            "population": 12,
            "revenues": 9000,
            "populationPerc": 0.003,
            "revenuesPerc": 0.257
        }
    ]
}