Instructions to form 8962 are different than last year and seem off? Any ideas?

Okay, so I've been filing my taxes without trouble for the past few years. Had a little hiccup last year with the addtion of the Premium Tax Credit form, but I figured it out and got my return without trouble. This year, I printed out all the forms and pulled up all the instructions to do the same when I came across [these instructions for calculating household income as a percentage of federal poverty line](https://www.irs.gov/instructions/i8962/ch02.html#d0e1001).

They're completely different than last year's instructions, and the numbers that result don't make sense to me. I tried using TurboTax's free e-filing option to see if they made the calculations in the new way, but nope - TurboTax used the same calculation method as last year (just dividing income by poverty line amount, no multiplying at all).

Both the pdf version and the html version of the instructions have this new calculation method. Any ideas on what is going on? Is this something that's going to result in a lot of amending and headaches for me if I follow instructions?