I primarily wanted to note that I used 2^X notation in the math, in case it was confusing for folks. I used KB/MB/GB to be consistent with the language AWS uses

I primarily wanted to note that I used 2^X notation in the math, in case it was confusing for folks. I used KB/MB/GB to be consistent with the language AWS uses on their S3 pricing page (https://aws.amazon.com/s3/pricing/ https://aws.amazon.com/s3/pricing/).