If its held in with rubbers, do it yourself. Find a local glass supplier, tell them its trade, you will pay COD.
That's the way I did it on my old uno turbo - tinted front screen - £63+vat
Fitted within 1 hr with the help of my smaller bro (knows nothing about cars)
It's fiddle, but easily possible.
If its glued in, I advise you to get it done by someone else.
I changed a couple of these for mates, they are *******s! You have to use cutting wire, break through the glue then saw it all around the screen. Too easy to damage all plastic surround, plus the glass cuts and shards of it go everywhere so blanket it up well.
Then you just buy some sealer (proper windscreen sealer) put it in the gun, go all around the edge, whack the screen on, use the blocks at the bottom to level and raise it up, job done!
Oh, and don't drive the car for 24hrs. I was taught how to do this, would not recommend it unless you can get someone to help who has done it before!
If it's rubber, all you need is....some string!