1. Go to your Google Play Console.
2. Scroll down to Monetize and select Products > Subscriptions. Click on the Subscription Product you wish to change.
3. Scroll down to Price and select Edit Price beneath the default price.
4. In this pop-up window, you can change the general pricing of the app or select manually the price for each country. When you are finished editing the prices, click on Apply Prices in the bottom right corner.