How to display quotas to my user without using currency?

I'm part of the development team of a GIS (geographic information system) cloud platform (https://sepal.io). We provide our users access to storage and supercomputers for free. To avoid them overloading the service we provide, we set up a quota system that prevents a regular user from using all our resources (because of course in the end WE pay for the AWS machines). If an advanced user require more computation we gladly increase their quota.

At the moment the quotas are displayed to the user as follows:

current display, a table with columns for the quota and amount utilized, with dollar signs used as units

Some of our users complained that we use the $ symbol and unit to measure quotas, as it make them think that they will need to pay.

How could we display this information without making people think that we are asking for money?

We cannot move directly to "%" because "budget d'instance" is not consumed at the same speed with respect to the size of the computer you're using; each machine will use your budget at a different speed:

table showing resources consumed

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