python - 相当于 Python 或 MYSQL 中的 Excel Goal Seek 函数

Question

我将如何实现 Excel Goal Seek使用 Python 或 mysql 运行？

这是场景:

在我工作的代理商中，他们购买商品然后卖给在线商店，这家在线商店收取 3 种不同的费用，根据最终价格计算。 该机构希望根据最终价格赚取固定金额，因此我需要用费用和他们想要赚取的金额来计算最终价格。

我知道他们想赚多少钱和初始价格，以及以 % 表示的费用，我不知道我需要以什么价格出售这些元素才能赚取特定金额。

在 excel 中，他们使用目标搜索功能计算最终价格，包括所有费用和代理商想要赚取的固定金额，我想用 python 或 mysql 来完成。

例如:

a1 = 270.0$ # This is the price they buy the item
c2 = 3.50$ # This is the shipping Price
c3 = 0.10 # This is the FEE of the store in percentage (10%)
c4 = 0.03 # This is the FEE for the credit card (0.3%)
c5 = 0.35$ # This is the Fixed FEE for the store 0.35$
d1 = 5$ # This is the amount they want to earn when they sell the item
x = ? # This is the final price they need to sell the item for earn d1

谢谢你的帮助

Answer 1

在 Python 中，您可以执行以下操作。注意公式可能需要调整

a1 = 270.00  # This is the price they buy the item in $

c2 = 3.50  # This is the shipping Price in $
c3 = 0.10  # This is the FEE of the store in percentage (10%)
c4 = 0.03  # This is the FEE for the credit card (0.3%)
c5 = 0.35  # This is the Fixed FEE for the store $0.35

d1 = 5.00  # This is the amount they want to earn when they sell the item in $
x = 0.00  # This is the final price they need to sell the item for earn d1

while True:
    # Assumed Formula - this may need to be adjusted to match your criteria
    earnt_amount = ((x - a1 - c2) * (1 - c3 - c4)) - c5
    x += 0.01
    if earnt_amount >= d1:
        break

print ('Price "x" should be: {0}'.format(x))