id,brand,cartridge,type,color,price_usd,price_date,price_source,yield_pages,yield_standard,yield_source,cost_per_page_usd
brother-lc401bks,Brother,"LC401BKS (standard, black)",cartridge,black,17.99,2026-10-16,https://www.brother-usa.com/products/lc401bks,200,ISO/IEC 24711,https://www.brother-usa.com/products/lc401bks,0.0899
brother-lc401xlbks,Brother,"LC401XLBKS (high yield, black)",cartridge,black,38.29,2026-10-16,https://www.brother-usa.com/products/lc401xlbks,500,ISO/IEC 24711,https://www.brother-usa.com/products/lc401xlbks,0.0766
epson-502-black,Epson,502 ink bottle (black),bottle,black,24.99,2026-10-16,https://epson.com/For-Home/Ink/Epson%26reg%3B-502%26reg%3B-Ink-Bottles/i/T502,7500,"ISO/IEC 24712 pattern, Epson methodology",https://www.4inkjets.com/blog/2018/03/26/epson-inkjet-cartridges-that-print-the-most-pages/,0.0033
epson-502-cyan,Epson,502 ink bottle (cyan),bottle,cyan,16.99,2026-10-16,https://epson.com/For-Home/Ink/Epson%26reg%3B-502%26reg%3B-Ink-Bottles/i/T502,6000,"ISO/IEC 24712 pattern, Epson methodology",https://www.4inkjets.com/blog/2018/03/26/epson-inkjet-cartridges-that-print-the-most-pages/,0.0028
hp-67xl-black,HP,"67XL (high yield, black)",cartridge,black,35.99,2026-08-14,https://castleink.com/pages/printer-ink-price-index,240,ISO/IEC 24711,https://www.hp.com/us-en/shop/vwa/ink--toner---paper/inktyp=High-Yield-Ink-Cartridges,0.15
canon-pg245xl,Canon,PG-245XL (black),cartridge,black,37.99,2026-08-14,https://castleink.com/pages/printer-ink-price-index,300,ISO/IEC 24711,https://castleink.com/pages/printer-ink-price-index,0.1266
canon-cl246xl,Canon,CL-246XL (tri-color),cartridge,tri-color,41.99,2026-08-14,https://castleink.com/pages/printer-ink-price-index,300,ISO/IEC 24711,https://castleink.com/pages/printer-ink-price-index,0.14