Laptop screen is cracked?

There's another laptop in my house (not mine). It's Dell inspiron 5520. It was bought 3 years ago. A few months ago it was placed on the book shelf or something, so it fall down and now there's a crack on it's screen which causes trouble in user experience. I wanted to know how much would it cost if I wanted to repair it? Please if you write the amount please convert it in Pakistani rupees.
Thanks in advance.

- Hassan

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