Presidential candidate Kamala Harris on Tuesday unveiled the price tag for her first campaign policy announcement, a federally-funded pay raise for public school teachers.

The Democratic senator from California, who announced the proposal last weekend during a rally in Houston, Texas, said she would boost the average teacher salary by $13,500, closing the 11 percent pay gap between educators and professionals with comparable degrees during the first term of a Harris administration if she wins her party’s nomination and is elected to the White House.