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# Add a Double as a return type to the calculateTaxes method and within the method return the following expression: (self.

struct Expense { var description: String var amount: Double = 0.0

```init (description: String) {
self.description = description

}

// add the calculateTaxes method here
// it should accept only one parameter named 'percentage' of type Double
```

} func calculateTaxes(percentage: Double)->Double{ return (self.amount * (percentage/100))

}

struct.swift
```struct Expense {
var description: String
var amount: Double = 0.0

init (description: String) {
self.description = description
}

// add the calculateTaxes method here
// it should accept only one parameter named 'percentage' of type Double

}
```

struct Expense { var description: String var amount: Double = 0.0

```init (description: String) {
self.description = description

}

// add the calculateTaxes method here
// it should accept only one parameter named 'percentage' of type Double
```

} func calculateTaxes(percentage: Double)->Double{ return (self.amount * (percentage/100))

}

This is how it should look after the second part of the challenge:

```struct Expense {
var description: String
var amount: Double = 0.0

init (description: String) {
self.description = description
}

func calculateTaxes(percentage: Double) -> Double {
return self.amount * (percentage/100)
}

}
```

Thank you am still getting an unresolved error

struct Expense { var description: String var amount: Double = 0.0

```init (description: String) {
self.description = description
}

// add the calculateTaxes method here
// it should accept only one parameter named 'percentage' of type Double
```

} func calculateTaxes(percentage: Double)-> Double { return self.amount * (percentage/100) }