As you said, RMB is quoted directly, and premium means RMB depreciation.

The future is easy for you to remember. Let me put it this way. In direct quotation, the unit foreign currency is equal to the local currency, so the premium means that this value becomes larger, that is, the unit foreign currency can be exchanged for more local currency, that is, the local currency depreciates. On the other hand, under the indirect pricing method, it is how much foreign currency the unit local currency is converted into, and the premium is that the unit local currency is converted into more foreign currencies, that is, the local currency appreciates.

I hope I can help you.