Cinema Tickets [JavaScript]

function solve(input) {
  let movieTitle = input.shift();

  let student = 0;
  let standard = 0;
  let kid = 0;

  while (movieTitle != "Finish") {
    let ticketCounter = 0;
    let seats = Number(input.shift());
    let ticketType = "";

    while (ticketType != "End" && seats > ticketCounter) {
      ticketType = input.shift();

      if (ticketType == "student") {
        student++;
        ticketCounter++;
      } else if (ticketType == "standard") {
        standard++;
        ticketCounter++;
      } else if (ticketType == "kid") {
        kid++;
        ticketCounter++;
      }
    }

    let percentage = ((ticketCounter * 1.0) / seats) * 100;

    console.log(`${movieTitle} - ${percentage.toFixed(2)}% full.`);

    movieTitle = input.shift();
  }

  let totalTickets = student + standard + kid;

  console.log(`Total tickets: ${totalTickets}`);
  console.log(
    `${(((student * 1.0) / totalTickets) * 100).toFixed(2)}% student tickets.`
  );
  console.log(
    `${(((standard * 1.0) / totalTickets) * 100).toFixed(2)}% standard tickets.`
  );
  console.log(
    `${(((kid * 1.0) / totalTickets) * 100).toFixed(2)}% kids tickets.`
  );
}