The Application starts with a Main Activity that asks the user for the price of an item. The default VAT Rate for each item sold is 15%. Since the VAT Rate may change from time to time, the activity

The Application starts with a Main Activity that asks the user for the price of an item. The default VAT  

Rate for each item sold is 15%. Since the VAT Rate may change from time to time, the activity will have

two buttons whose purpose is to allow the user to specify if there is a need to change the VAT Rate.  

These two buttons are labelled Yes and No. If the user C licks on button “Yes”, the app navigates to a  

second activity that displays the current VAT Rate and allows the user to change the VAT rate. After  

changing the VAT rate, the app navigates back to the Main Activity again and the VAT changes to the  

one supplied in the second activity. Once in the Main Activity, the if the user enters a Price and clicks  

the No button, Calculate and Display the following values (these figures are examples)