The is literally what every consulting firm does when they come in. They create a "Whale" chart, aka "Cumulative Customer Profitability". See http://www.inde

The is literally what every consulting firm does when they come in. They create a "Whale" chart, aka "Cumulative Customer Profitability". See http://www.independent.co.uk/news/business/analysis-and-features/masters-of-illusion-the-great-management-consultancy-swindle-1788556.html http://www.independent.co.uk/news/business/analysis-and-feat... for a, umm, insider view of it. and http://www.magesblog.com/2014/01/whale-charts-visualising-customer.html http://www.magesblog.com/2014/01/whale-charts-visualising-cu... if you want to see some sample code :-)