Billing Method for Upgraded Instances
After upgrade, pay-as-you-go instances will be billed based on the new instance specifications starting from the next billing cycle.
Billing Method for Downgraded Instances
Pay-as-you-go
If you choose to degrade a pay-as-you-go database instance, it will be billed at the tier 1 pay-as-you-go price for the new configuration.
