How many are on the map, city by city?

Pick a kind of business. You get the size of the map list in every city, biggest first, and the share that list a website. This is map coverage, not the size of the market: Google Maps usually holds more, and one Google Maps search returns up to about 120 places, so a run with the city and its busiest neighbourhoods can return several hundred where the map shows dozens. The cost calculator turns that into rows and a price.