upload and storage of WGS data in Firecloud

Hello,

I plan to upload a large set (~100) of WGS .bam/.bai files to Firecloud.

I was wondering what is the cost of uploading and storage of data (per Gb) in the Firecloud workspace?

Could you please recommend the most time- and cost-efficient way of uploading a large set of data to Fireceloud?

Thank you!