What does the saved method value print?

package main

import "fmt"

type Price struct{ Cents int }

func (price Price) WithTax(tax int) int {
    return price.Cents + tax
}

func main() {
    price := Price{Cents: 100}
    calculate := price.WithTax
    price.Cents = 200
    fmt.Println(calculate(20))
}