Don't know either, Ren... couldn't even begin to say.... wages here are so low that this sounds pretty nice, RELATIVELY speaking, of course !
Just wanted to to send you congrats for receiving the offer to begin with ! I knew you'd do it !!! Woooooooot ! Now... time for you and them to sit down at the negotiating table.... you let them know what you're worth... and why they should compensate you accordingly. Help them understand why they NEED you !

Congrats and let us know what decision you all come to !