1. Log in to the DDS management console.
2. On the Instance Management page, click More on the far right of the instance for which you want to change the billing mode to yearly/monthly subscription, and click Pay-as-you-go to Subscription-based.
3. Then, on the Pay-as-you-go to Subscription-based page, select the renewal specification in months. The minimum duration of subscription is one month. Check that the order information is correct, and click Pay to finish payment.
4. After the billing mode is switched from pay-as-you-go to subscription-based, users can check on the Instance Management page. You can click the Refresh button at the upper right corner of the instance list and check that after the billing mode is switched from pay-as-you-go to subscription-based, the Billing Mode of the instance is displayed as Yearly/Monthly.