{"book":"adl0290","page":762,"text":"۲۹۲\n\nباب چهل و پنجم\n\nنفع و نقصان\n\n۲۲۴ - در این باب مقدار نفع و نقصان بلحاظ قیمت خرید بحساب فیصد معلوم کرده خواهد شد :\nمثال ۱- اگر چند چوکی بحساب فی چوکی ۵ روپیه خریده و بحساب ۵ روپیه ۹ آنه فروخته شود شرح نفع فیصد را دریافت کنید :\nدر ۵ روپیه یعنی ۸۰ آنه ۹ آنه نفع میشود مطلوب این است که نفع ۱۰۰ آنه دریافت نمائیم ؟\n:. نفع مطلوب = ۹ × ۱۰۰ / ۸۰ = ۴۵ / ۴ = ۱/۴ ۱۱ فیصد\nمثال ۲ - یک اسپ به ۸۰ روپیه خریدیم و به نفع ۲۵ فیصد فروختیم پس مقدار نفع و قیمت فروخت را معلوم کنید -\nنفع = ۲۵ فیصد ۸۰ روپیه = ۲۵ / ۱۰۰ × ۸۰ روپیه = ۲۰ روپیه\n:. قیمت فروخت اسپ = ۸۰ روپیه + ۲۰ روپیه = ۱۰۰ روپیه","chars":574,"image":"https://storage.googleapis.com/adl-page-images/adl0290/00762.jpg","first_page":1,"last_page":1089,"title":"ʻIlm-i ḥisābعالم حساب","permalink":"https://afghanpress.org/book/adl0290/762","canvas":"https://afghanpress.org/iiif/adl0290/canvas/762","source":"https://afghanistandl.nyu.edu/books/adl0290/","source_pdf":"https://afghanistandl.nyu.edu/pdf/adl0290_download.pdf","rights":{"image":{"statement":"Public domain. NYU states: \"All works presented on this website are, unless otherwise indicated, in the public domain. The images available on this website may be freely reproduced, distributed and transmitted by anyone for any purpose, commercial or non-commercial.\"","uri":"http://rightsstatements.org/vocab/NoC-US/1.0/","holder":"New York University Libraries","source":"https://afghanistandl.nyu.edu/about.html","delivery":"Images are served from a copy mirrored by this project, not from NYU's servers, under the reproduction terms above.","endorsement":"This is an independent project. It is not affiliated with, endorsed by, or reviewed by New York University."},"text":{"statement":"Machine-generated transcription, dedicated to the public domain under CC0 1.0. No warranty of accuracy: see the provenance block on every page.","uri":"https://creativecommons.org/publicdomain/zero/1.0/","holder":"Steps Ventures"}},"provenance":{"text_produced_by":"gemini-3.1-pro-preview","thinking_level":"low","read_completed":"2026-08-09","per_page_confidence":null,"per_page_confidence_note":"Not recorded during the corpus run. No calibrated per-page score exists, and none is estimated here.","human_reviewed":false,"accuracy_context":"Roughly two thirds of characters agree with a modern printed edition of the same text. Much of the disagreement is editorial, not misreading. Treat the transcription as a finding aid and read the page image before quoting.","primary_source":"The page image. The text is an index into it."}}