Java Fundamentals - Giftbox Coverage

import java.util.Scanner;

public class GiftboxCoverage {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        double sideSize = Double.parseDouble(scanner.nextLine());
        int sheetNumber = Integer.parseInt(scanner.nextLine());
        double sheetArea = Double.parseDouble(scanner.nextLine());

        double sideArea = sideSize * sideSize;
        double giftBoxArea = sideArea * 6;

        int smallAreaSheets = sheetNumber / 3;
        int bigAreaSheets = sheetNumber - smallAreaSheets;
        double totalSheetsArea = bigAreaSheets * sheetArea + smallAreaSheets * (sheetArea * 0.25);

        double coveragePercent = totalSheetsArea / giftBoxArea * 100;
        System.out.printf("You can cover %.2f%% of the box.", coveragePercent);
    }
}