Tamika's Terrific Tacos sells a beef or chicken taco for $2.50. The ingredients for each taco cost 50¢. Tamika's taco makers Tom, Ted, Tammy, and Tina make $10 an hour and can each make 20 tacos in an hour, which means the labor cost of each taco is 50¢. Tamika has calculated that the cost of rent, utilities and advertising for her store averages 25¢ per taco. Tamika works the counter and pays herself a salary that averages 25¢ per taco. Tamika is left with $1 per taco that she can invest in improving or expanding her business. How much profit does Tamika's Terrific Tacos generate per taco sold?