Credit Meter with Overage Price in Checkout

Currently, for a credit meter with overage, the “cost per credit” appears as 0 which is not true.

It would be helpful if the checkout showed the FIAT cost per credit.

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<summary>Credit Config</summary>

Custom Unit

Allow Overage: true

Price Per Unit: $0.02

Overage Behaviour: Bill Overage at Billing

Product includes 5 credits, and has a tasks meter that is billed in credits with 1 meter unit per credit.

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