My colleague has told me to order 50 cartridges for office use but she has also mentioned to quote the approximate “cost of ownership”. Christ! What’s that! I have no idea whatsoever! Calculating the "cost of ownership" per month is quite easy. The math is simple: (number of prints per month) times (cost of the cartridge) divided by (the yield of the cartridge).
Yield is the number of pages that can be printed with one particular cartridge.
For example, assume that average home user prints 150 black pages per month using a black cartridge that yields 200 pages and costs $28.
The monthly "cost of ownership" is:
[(150pages)x($28)]/200 pages = $21
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