You can write a Python function that takes a list of strings as input and returns a sorted list based on the calculated values. Here is an example implementation:

def sort_strings_by_value(strings):
    # Define a helper function to calculate the value of a string
    def calculate_value(string):
        value = 0
        for char in string:
            value += ord(char) - ord('a') + 1
        return value

    # Sort the list of strings based on their calculated values
    return sorted(strings, key=calculate_value)

# Example usage
strings = ['cab', 'abc', 'bca']
sorted_strings = sort_strings_by_value(strings)
print(sorted_strings)
# Output: ['abc', 'bca', 'cab']


In this implementation, the calculate_value function takes a string as input and returns its value by summing the indices of its characters in the alphabet. The sort_strings_by_value function takes a list of strings as input and returns a sorted list of strings based on the calculated values. The key argument of the sorted function is used to specify the calculate_value function as the sorting key.
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