import all_constants as c


def round_ans(val):
    # rounds to 2 decimal places
    return "{:.2f}".format(val)


def to_usd(amount):
    answer = amount * c.NZD_TO_USD
    return round_ans(answer)


def to_eur(amount):
    answer = amount * c.NZD_TO_EUR
    return round_ans(answer)


def to_gbp(amount):
    answer = amount * c.NZD_TO_GBP
    return round_ans(answer)


def to_jpy(amount):
    answer = amount * c.NZD_TO_JPY
    return round_ans(answer)


def to_aud(amount):
    answer = amount * c.NZD_TO_AUD
    return round_ans(answer)