print("Juice Calculator 0.1")
amt = int(input("How many mls of juice are you making?: "))
nicotine =  int(input("What strength is the Nicotine concentrate?: "))
#nicotinepg = int(input("What % of the Nicotine is PG?: "))
targetnic =  float(input("What is your target mg Nicotine level?: "))
#targetpg = int(input("What is your target PG level?: "))
nicotinebase = (amt * targetnic)/nicotine
string = "You need to add {}mls of Nicotine to your juice."
output = string.format(nicotinebase)
print(output)
input("Press enter to close program")