She's driving a hard bargain !!!

Max	Ms. Reiner said she will accept 1,000 dozen on the condition that we lower the price to $15 per dozen.
Michelle	She's driving a hard bargain. How much per dozen now ?
Max	The current price is $18 per dozen.
Michelle	Will we make any money on this order if we agree to her price ?
Max	Definitely. Not a large profit, though.
Michelle	What do you think we should do ?
Max	I think we should make it $15. After all, she is one of our best customers and she's been loyal to us all these years.
Michelle	OK. Make it to $15. The price is for Ms. Reiner only. Got to fill her in on the good news.

Explanation :

Drive a hard bargain - To expect a lot in exchange for what you pay or do

Example : It's more than I planned to pay, but you drive a hard bargain.