We take all the details from your bill including tariff type, kWh consumption, start and end date, solar exports, solar feed-in tariff, plus any discounts, concessions and incentives that might also be present.
Then we calculate what you would have been charged for that same usage and time under every relevant publicly available plan, and we rank them all by price, including your own bill.
It's very illuminating to see where your bill lands in the lineup.