Added ProfitCalculationsActivity to AndroidManifest.xml
Added button to move to next calculations screen and added check for total revenue.
Removed since will be replaced by activity_calculations_revenue.xml
Added new layout for ProfitCalculationsActivity
New file that used to be called activity_calculations.xml
Updated strings
Added method to format double values as a currency
Added ProfitCalculationsActivity with basic functionality
Change the degree symbol for temperature so it looks right