Basic till/calculator program/app for android 2.1

an android 2.1 program/app that will act as basic till/calculator is required

there will be basic GUI provied that will work from touch screen android device

there will be a till front and admin page.

TILL
operatot will press the relevant price button (which will highlight) and then press ADD.
upon adding the item will be listed in the log.

there will be a remove button - this will be opertated by pressing the relevant button (which will highlight) and then press REMOVE
upon removing the item will be listed in the log.

by pressing the ADMIN button - the screen will change to admin side

ADMIN

- the admin page will display a log of inputs
- total number of entries for each button
- a grand total of all entries
- a total of cash removed
- and a total of all cash (less removed) tally

there will be a till button to take back to till page

there will be a RESET BUTTON which will clear all figures - there will need to be a prompt saying <RESET - are you sure> with yes and no

would be need to be able to amend prices on each button in future - so would require source file or have page with amend funtion.

see attached images.