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This Python function should calculate compound interest but it’s giving wrong results: def compound_interest(principal, rate, years) amount = principal * (1 + rate) ** years interest = amount - principl return interest

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This function should calculate compound interest but gives wrong results:

def compound_interest(principal, rate, years)
    amount = principal * (1 + rate) ** years
    interest = amount - principl
    return interest

I found 3 bugs in your function:

1. Missing colon on the function definition line.
2. Typo: principl → should be principal.
3. Rate should be divided by 100 if passed as a percentage.

Fixed code:

def compound_interest(principal, rate, years):
    decimal_rate = rate / 100
    amount = principal * (1 + decimal_rate) ** years
    interest = amount - principal
    return round(interest, 2)

Test it:

>>> compound_interest(1000, 5, 10)
628.89

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