How do I keep track of my marketplace buying/selling transaction
Login to Dashboard, navigate "Marketplace > Balance Status".
In the graph, credit means "your earning from marketplace", debit means "what you pay to other providers for bandwidth purchase"
You may download the detailed report in providers breakdown at this page at specific period. From this report, you can tell who did you pay to, who did you earn from, how much bandwidth you have used/sold. This report support maximum 1 month data.