Learning---python/Currency Exchange at main · Armanman33/Learning---python · GitHub

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def exchange_money(budget, exchange_rate):
    """Calculate the exchanged amount of foreign currency."""
    return budget / exchange_rate


def get_change(budget, exchanging_value):
    """Calculate the amount left after exchanging money."""
    return budget - exchanging_value


def get_value_of_bills(denomination, number_of_bills):
    """Calculate the total value of the bills."""
    return number_of_bills * denomination


def get_number_of_bills(amount, denomination):
    """Determine the number of whole bills that can be obtained."""
    return int(amount / denomination)


def get_leftover_of_bills(amount, denomination):
    """Calculate the leftover amount after exchanging into bills."""
    return amount % denomination


def exchangeable_value(budget, exchange_rate, spread, denomination):
    """Calculate the maximum value of new currency that can be obtained."""
    final_ex = exchange_rate * (1 + spread / 100)
    total_newcurrency = budget / final_ex
    max_value = total_newcurrency - (total_newcurrency % denomination)
    return int(max_value)