Over 10usd, save 2usd; Over 20usd, save 4usd; Over 30usd, save 6usd; Over 40usd ,save 8usd; Over 50usd, save 10usd; Over 60usd, save 12usd; Over 70usd, save 14usd; Over 80usd, save 16usd; Over 90usd, save 18usd; Over 100usd, save 20usd;Over 110usd, save 22usd; Over 120usd, save 24usd; Over 130usd, save 26usd; Over 140usd, save 28usd;