Есть ли способ сказать пользователю, сколько монет ему нужно добавить или удалить в зависимости от веса мешка, который он ввел?

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if coinType == "1 pence":
                coinWeight = 3.56
                bagWeight = 356
                numberCoins = 100
            elif coinType == "2 pence":
                coinWeight = 7.12
                bagWeight = 356
                numberCoins = 50
            elif coinType == "5 pence":
                coinWeight = 3.25
                bagWeight = 325
                numberCoins = 100
            elif coinType == "10 pence":
                coinWeight = 6.50
                bagWeight = 325
                numberCoins = 50
            elif coinType == "20 pence":
                coinWeight = 5.00
                bagWeight = 250
                numberCoins = 50
            elif coinType == "50 pence":
                coinWeight = 8.00
                bagWeight = 160
                numberCoins = 20
            elif coinType == "2 pound":
                coinWeight = 8.75
                bagWeight = 175
                numberCoins = 20
            else:
                coinWeight = 12.00
                bagWeight = 120
                numberCoins = 10

            weight = float(input("What is the weight of the coin bag?: "))
            if weight == bagWeight:
                print("That is a valid coin bag weight!")
                print("ThankYou!")
                correct = "Y/n"
                coinCount2 = True
            else:
                print("That is an invalild weight!")

Это код, который является накоплением к той части программы, которая должна сказать пользователю, сколько монет он должен добавить или удалить.

Что я уже пробовал:

if weight < bagWeight:
                add = bagWeight - weight
                coins = add / numberCoins
                print("You need to add ",coins,"coins to the bag")
            elif weight > bagWeight:
                add = bagWeight - weight
                coins = add / numberCoins
                print("You need to remove ",coins,"coins to the bag!")
            else:
                exit()

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