AWS charges $0.09/GB, and Azure charges $0.0875/GB.
Maybe Troy Hunt gets a discount for being a Microsoft Regional Director and MVP. (Neither of which make him an employee of Microsoft, confusingly enough.)
https://docs.digitalocean.com/products/billing/bandwidth/
https://www.linode.com/docs/guides/network-transfer/
https://aws.amazon.com/ec2/pricing/on-demand/
https://azure.microsoft.com/en-us/pricing/details/bandwidth/