Out of the signed contracts, what percentage of them have the 20% discount?
What percentage of the signed contracts are discounted at 20% off?
締結済みの契約のうち2割引きで契約されたものは何%ですか と言いたい場合は
「Out of the signed contracts, what percentage of them have the 20% discount?」と言います
もしくは
「What percentage of the signed contracts are discounted at 20% off?」
What percentage=そのうちの何％
Signed contracts=締結済みの契約
Off, discount=割引
英会話なんてuKnow? へのお問い合わせして頂きありがとうございます。
またのご利用をお待ちしております！
カナダ 
