btc calc

import sys

def calc():
    #BTC profit calcuator
    btcv = float(input('Amount of BTC mined = '))
    btcp = float(input('Current BTC value = '))

    exp = float(input('Expenses for the day = '))
    day= btcv * btcp
    print('Value in USD daily = ', day)
    month = day * 30
    print('Value in USD monthy = ',month)

    v = exp - day
    j = v * 30
    b = day - exp
    k = b * 30
    if exp > day:
        print('Daily Losses USD = ', v)
        print('Monthy Losses USD = ', j)
    else:
        print('Daily Profits USD = ', b)
        print('Monthly Profits USD = ', k)

calc()

while True:
    again = input("Wanna perform the action again? y/n\n>>> ")
    if again == "y":
        calc()
    else:
        sys.exit(0)