I'm confusing when adding new plans. How pro sites know

Hi,

I'm confusing when adding new plans. How pro sites know which plan is the cheaper and the more expensive?

I want 3 levels:

1. Bronze (up tp 1GB) (cheaper)
2. Silver (up tp 2GB)
3. Gold (up tp 5GB) (expensive)

In the table prices, I want to show the level from the cheaper to the more expensive, and I noted that it shows the inverse.

Thanks.