OK: let's initially assume the company is made up of only engineers and recruiting. Let R be the percentage of the company that is recruiting, so 1-R is enginee

OK: let's initially assume the company is made up of only engineers and recruiting. Let R be the percentage of the company that is recruiting, so 1-R is engineering. Then 0.15 = 0.05(1-R) + 0.50R so 0.10 = 0.45R or R = 0.10/0.45... thereby 2/9th of the company is recruiting. If engineering is less than 1-R (as it certainly is), we can model this with a new variable E: the percentage of the rest of the company that is engineering, with E=1 being the prior case. Then 0.15 = 0.05(1-R)E + 0.50R, and you eventually get R = (0.15-0.05E)/(0.50-0.05E). To check this: if E were 0 (so, no engineers) then that would imply the percentage of all people at Facebook who are recruiters would be 30%, which makes sense as 50% of 30% is 15%. This means that our prior estimate of 2/9ths of the company--or ~22%--is a conservatively low estimate for R. (FWIW: I'm guessing--as that's ridiculous, right? ;P--that there are a bunch of people being fired who aren't in either engineering or recruiting... that, or people quit Facebook so often that they have to have an army of recruiters just to maintain a steady state of employment.) Here is an article from one year ago (October 27th, 2021) that might provide us some context: https://www.protocol.com/workplace/facebook-docs-hiring-recruiting-crisis https://www.protocol.com/workplace/facebook-docs-hiring-recr... > Facebook's hiring crisis: Engineers are turning down offers, internal docs show > Just under two weeks ago, Facebook announced that it planned to hire 10,000 engineers in Europe to help build, among other tools, its planned "metaverse" (an announcement on those efforts is scheduled for Thursday). In Frances Haugen's testimony to the United Kingdom Parliament earlier this week, she said that she was "shocked" to hear that news. "Do you know what we could have done with safety if we had 10,000 more engineers? It would have been amazing," she said. https://www.protocol.com/bulletins/facebook-hiring-metaverse-europe https://www.protocol.com/bulletins/facebook-hiring-metaverse... > Facebook wants to be the company that moves our lives into the shared virtual reality known as the metaverse — and apparently, the company needs to hire 10,000 engineers in the European Union to make that happen. I'd really love to know what percentage of the people being fired as part of this layoff (if this rumor turns out to be true) are specifically working on the Metaverse (and then, how many of these people are in Europe). It would be amazing if it were 0, and all of these people work on a "legacy product", such as Instagram... or Facebook ;P. METAVERSE AT ALL COSTS