go_workshop/chapter_03/activity_3.01/main.go

package main

import "fmt"

func salesTax(cost float64, taxRate float64) float64 {

  return cost * taxRate / 100

}

func main() {

  taxTotal := 0.0

  taxTotal = salesTax(0.99, 7.5)
  taxTotal += salesTax(2.75, 1.5)
  taxTotal += salesTax(0.87, 2.0)

  fmt.Println("Sales Tax Total:", taxTotal)

}