How much more data does my MacBook use than my iPhone 6plus?

When using my iPhone personal hotspot to my MacBook Pro does it use more data loading a webpage versus my iPhone? I normally use chrome browser. Also how can I minimize the amount of data my laptop uses when I'm connected to my hotspot?

It will definitely use more data. Not much you can do to minimize it other than stay off it.

"using my iPhone personal hotspot to my MacBook Pro"

Why? Your iPhone is connecting to a Wi-Fi network. Why can the MacBook Pro not also connect to the same Wi-Fi network?