Ios 如何以编程方式计算应用内购买价格的净收入？

我想从SKProduct获得价格层，并计算AppStore price的净收入

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例如，从0.99美元到0.7美元，从1.29澳元到0.82澳元。我可以用程序计算吗？

是的，你可以用程序计算。你得到了70%的收入，所以代码应该是

 float revenue = price * 0.7f

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现在看起来是这样的：

var netRevenue = 0.0

switch currency
{
    case "USD", "CAD", "NZD":
    netRevenue = (price + 0.01) * 0.7

    case "EUR", "DKK", "SEK", "GBP":
    netRevenue = price * 0.70 / 1.15

    case "AUD":
    netRevenue = price * 0.70 / 1.11

    case "CHF":
    netRevenue = price * 0.70 / 1.08

    case "NOK":
    netRevenue = price * 0.70 / 1.25

    case "ZAR":
    netRevenue = price * 0.70 / 1.14

    default:
    netRevenue = 0.7 * price;
}
netRevenue.roundTo(".2")

//.roundTo
extension Double
{
    mutating func roundTo(f: String)
    {
        self = NSString(format: "%\(f)f", self).doubleValue
    }
}

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0.7/0.99=0.70707，0.82/1.29 AUD=0.63566，一些商店有附加税