Cinema Tickets

package main

import (
  "fmt"
  "bufio"
  "os"
  "strconv"
)

func main() {
    var kidTickets, studentTickets, standardTickets int

    scanner := bufio.NewScanner(os.Stdin)

    for {
        scanner.Scan()
        movie := scanner.Text()
        if movie == "Finish" {
          break
        }
        scanner.Scan()
        seats,_ := strconv.Atoi(scanner.Text())

        counter := 0

        for i := 0; i < seats; i++ {
            scanner.Scan()
            category := scanner.Text()
            if category == "student" {
                studentTickets++
            } else if category == "standard" {
                standardTickets++
            } else if category == "kid" {
                kidTickets++
            } else {
              break
            }
            counter++
        }

        fmt.Printf("%s - %.2f%% full.\n", movie, float64(counter) / float64(seats) * 100)
    }

    sumTickets := standardTickets + studentTickets + kidTickets

    fmt.Printf("Total tickets: %d\n", sumTickets)
    fmt.Printf("%.2f%% student tickets.\n", float64(studentTickets) / float64(sumTickets) * 100)
    fmt.Printf("%.2f%% standard tickets.\n", float64(standardTickets) / float64(sumTickets) * 100)
    fmt.Printf("%.2f%% kids tickets.\n", float64(kidTickets) / float64(sumTickets) * 100)
}