[Tkinter] tkinter progress bar for decending number

[Larz60+]

>>> starting_weight = 225
>>> 
>>> def get_progress_value(current_weight):
...     return starting_weight - current_weight
... 
>>> for current_weight in range(225, 217, -1):
...     print(f"Current weight: {current_weight}, Progress bar value: {get_progress_value(current_weight)}")
... 
Current weight: 225, Progress bar value: 0
Current weight: 224, Progress bar value: 1
Current weight: 223, Progress bar value: 2
Current weight: 222, Progress bar value: 3
Current weight: 221, Progress bar value: 4
Current weight: 220, Progress bar value: 5
Current weight: 219, Progress bar value: 6
Current weight: 218, Progress bar value: 7
>>>