Today in class we used TRACS to look at the program from last time, so we could better understand how it works and how the Python translator works.

• A compiler changes all the source code (python) to machine (object) code. The machine code is then executed after all lines have been complied.
• An interpreter changes one line of source (Python) code to Machine (object) code, this is then executed immediately.

The class was then set a new program to create.

Task

Write a program that takes in 3 numbers, calculates the total, then works out the change from a given amount.

Test data

2.99, 1.50, 3.00
10.00