If you want a math problem corrected, or have math homework kids, post it as a comment here on HN.

You're getting 16 + (5x2) = 26 weeks of pay, not (16+2) x 5 = 90 weeks.

? No coffee yet this morning, but isn’t 5 years 26 weeks of pay for severance? And depending on how the severance contract is written, you might not be able to work elsewhere during part or all of this. Perhaps just 60 days due to WARN (in the us) where you are “working” for meta before the money is unencumbered. Read closely. If you have a lawyer friend, ask their opinion.

5 years => 26 weeks = 0.5 years of pay, right?

16 + (2 * 5) = 26

In my book that is 6 month's pay

I suspect OP may have been going for a variation on the old "Programmer returns with zero eggs and 12 gallons of milk after having been asked to get one gallon of milk and if they have eggs to buy a dozen"-joke, but it falls flat in this instance since it relies on an interpretation bordering on deliberate misconstrual (i.e. applying the modifier "for each year of service" to the whole phrase "16 weeks plus two additional weeks" rather than just to the latter fragment "two additional weeks").

16 + (5*2) = 26 / 4.33 = 6 months? Unsure where you're getting 2 years.

Edit: Lol - OP posted less than 3 minutes ago & there were no replies. Before I finished my comment there are now a dozen others with the same.

Possibly dumb question, but how did you get to two years?

I think it would be 5 years times 2 extra weeks - 10 extra weeks on top of the 16 weeks severance

5 years service would be 26 weeks / half a year, no? Am I reading this differently to you?

You may have misread "weeks" as "months".

16 + 2 * 5 = 26, implying six months’ pay, not two years?

Why is 26 weeks two years of pay?

Wait, how is 26 weeks 2 years?

isn't it just 26 weeks extra? 16 weeks + (2 weeks * 5 years)