Find cost per page of inkjet versus laser printing.
Consumable price means nothing without page yield: cost per page is the only comparable figure across inkjet and laser. Toner costs more per cartridge but prints several times as many pages, which is why laser usually wins per page even when the hardware costs more. Manufacturer yields assume standardised 5% page coverage, so heavy graphics push real costs above these figures.
Cost per page
Cost per page = cartridge price / page yield; laser advantage = ink cost per page - toner cost per page
Low yields. A cartridge costing a third of a toner unit typically prints a sixth of the pages, and unused ink also dries out in lightly used printers.
They assume about 5% coverage of the page. Dense text, colour graphics and photos consume far more, so treat published yields as a ceiling.
If you print regularly in mono, the per-page saving usually repays the higher hardware price quickly. For occasional colour photo printing, inkjet still makes sense.