# How are augmented maximums calculated in SR5?

I have probably simply overlooked it in the book, but three separate searches through the book have still failed to find it, so I thought I'd ask. Sorry if it's obvious and I'm just missing it.

Several spells and power reference a character's "augmented maximum" for an Attribute. I fail to find the calculation for this statistic. I'm assuming it's something fairly obvious, probably Attribute*1.5 or Attribute*2, but I'd like to know for sure.