How can I change the currency displayed in the app?
We have no direct influence on the currency that is displayed to you, this must be changed in your account settings.
Open the Google Play Store App
Click on the settings at the top.
Under Payment Profile, search for Country/Region. This section displays your current country, which is also what your version of Google Play is based on.
Open the Settings app
Tap on your name and then on Media & Purchases
Tap on Show account
Tap Country/Region and then on Change country or region
Tap on your new country or region
Choose your country, tap Next and follow any further instructions from your device.