Write an iPhone & Droid application

Basically want to turn a relatively straightforward, one page excel document into an app (ios and android). Will be as simple as it comes in terms of UI: 1) User fills in both input fields, hits calculate 2) Outputs presented We would provide a couple of images and logo for the design The spreadsheet is attached, and in the black box you can see the inputs (there are only two inputs) and the outputs. Would be useful if you could tell me: Full cost to get it ready for market (ios and android) including listing on itunes/ play etc I am looking for low price for the App as I know this is very small project. Do not bid with big numbers as i being a mobile programmer myself i know inside out about programming. Cheers