[{"data":1,"prerenderedAt":94},["ShallowReactive",2],{"blog-post-/blog/ja-jp/calculate-discount-and-final-price":3,"related-posts-/blog/ja-jp/calculate-discount-and-final-price":80},{"id":4,"title":5,"author":6,"body":7,"category":63,"date":64,"description":16,"extension":65,"featured":66,"image":67,"meta":68,"navigation":69,"path":70,"readingTime":71,"seo":72,"stem":73,"tags":74,"tools":78,"__hash__":79},"content/blog/ja-JP/calculate-discount-and-final-price.md","割引率から値引き額と支払総額を計算する方法","Anything Tools Editorial",{"type":8,"value":9,"toc":54},"minimark",[10,13,17,21,30,33,36,39,42,45,48,51],[11,12,5],"h1",{"id":5},[14,15,16],"p",{},"割引の重ね掛けや税・送料を段階的に計算し、節約額と支払額を区別します。",[18,19,20],"h2",{"id":20},"まず一回の割引を計算する",[14,22,23,24,29],{},"元値に割引率を掛けて値引き額を求め、元値から引きます。80ドルの商品が25％引きなら20ドル安くなり、販売価格は60ドルです。",[25,26,28],"a",{"href":27},"/calculator/percentage","パーセント計算機","で確認できます。",[18,31,32],{"id":32},"特典を比較する",[14,34,35],{},"80ドルの商品に15ドル引きのクーポンを使うと65ドル、25％引きなら60ドルです。他の条件が同じなら後者が安くなります。最低購入額や送料も確認しましょう。",[18,37,38],{"id":38},"重ね掛けは順番に",[14,40,41],{},"10％引きが二回でも20％引きにはなりません。100ドルが90ドルになり、さらに81ドルになります。定額クーポンと割合割引の順序も結果を変える場合があります。",[18,43,44],{"id":44},"税と手数料を加える",[14,46,47],{},"60ドルの販売価格に8％の売上税が加わるなら、税は4.80ドル、送料を除く合計は64.80ドルです。税の扱いは地域や商品で異なるため、表示価格だけで判断しないでください。",[18,49,50],{"id":50},"間違えやすい点",[14,52,53],{},"割合を金額としてそのまま引いたり、連続した割引率を足したりしないでください。途中では十分な桁数を保ち、最後に店舗の方法で丸めます。値引き額と支払総額は別物です。",{"title":55,"searchDepth":56,"depth":56,"links":57},"",2,[58,59,60,61,62],{"id":20,"depth":56,"text":20},{"id":32,"depth":56,"text":32},{"id":38,"depth":56,"text":38},{"id":44,"depth":56,"text":44},{"id":50,"depth":56,"text":50},"Calculators","2026-10-16T00:00:00.000Z","md",false,"/blog/calculate-discount-and-final-price.png",{},true,"/blog/ja-jp/calculate-discount-and-final-price",4,{"title":5,"description":16},"blog/ja-JP/calculate-discount-and-final-price",[75,76,77],"discount calculator","percentage","shopping math",[27],"7lZmd3LRe2buRNsM32JgIHNjXVcoFeHeY4KdLRPd19E",[81,88],{"path":82,"title":83,"description":84,"date":85,"image":86,"category":63,"readingTime":87},"/blog/ja-jp/how-to-calculate-logistics-density","物流密度 (Logistics Density) の計算方法：2026年完全攻略ガイド","貨物輸送と物流密度の計算方法を学びましょう。体積や重量制限、密度公式を理解し、オンライン計算ツールを使って輸送コストを最適化します。","2026-04-16T00:00:00.000Z","/blog/how-to-calculate-logistics-density.png",5,{"path":89,"title":90,"description":91,"date":85,"image":92,"category":63,"readingTime":93},"/blog/ja-jp/what-is-the-brrrr-method","不動産投資の BRRRR メソッドとは？2026年完全ガイド","不動産投資におけるBRRRRメソッド（Buy、Rehab、Rent、Refinance、Repeat）の仕組みについて解説します。プロセスを理解し、キャッシュフローを最適化しましょう。","/blog/what-is-the-brrrr-method.png",6,1793329958194]