If an African female student participated in a work program and earned $5,745 and a non-participant African female earn $5,334. What is the percentage difference in pay for a student that participate in compared to a student that did not participate in the program.
Estimate also the same thing for a white female student who participates and earns 7.8 thousands of dollars and a non-participant white female student that earns 6.5 thousand.