Price per square foot installation on snap lock laminate?

how much in the atlanta area would i expect for labor only installation on a slab? i did a job and did a great quality and installed shoe mold and 6 t strip threshholds. i also removed all nasty carpet and tackstrip and hauled away. I gave this man a hell of a deal i thought with a price of 650.00 and now he is saying that is way to much. To make matters worse the work is done! Any honest help would be appreciated!!!!!