That's hard to say, depending on the damage, there might be more to be fixed.
See if you can visit an Authorized Apple Service Provider or Apple Store next to your place.
They can check the damage and give you an estimated price for the repair.
Or contact Apple Support, to send it in.
...
Send it in
Contact us and we’ll send you a box for your iPhone. You can ship your iPhone to us and we’ll return it to you as quickly as possible.
Start a service request
Back up your iPhone and get ready for service
Bring it in
To get help in person, bring your iPhone to an Apple Authorized Service Provider or make an Apple Store appointment online. Make sure you know your Apple ID and password before your appointment.
You can also request repair service directly from most US carriers. If you're an AT&T or Virgin Mobile customer, request your repairs from Apple.
Make an Apple Store appointment
Contact your carrier
Back up your iPhone and get ready for service
How much will it cost?
There's no charge if the issue is covered under warranty, AppleCare+, or consumer law. If your issue isn’t covered, the price depends on the type of repair. If we can’t repair your iPhone, you might need to replace it.
See Apple repair pricing
Check your warranty coverage...
copied from: iPhone Service Answer Center - Apple Support