You and your coworker together make $ 16 per hour. You know your coworker earns 10 percent more than you do. Your hourly wage is $ .
After taking Math 1010 your hourly wage is raised to $ 12. This is a raise of %.
After returning to work you can't help mentioning casually to your coworker that now you make % more than he does.
He responds wistfully that this is as it should be since now you can figure problems like the ones on this assignment!

HINT: The confusing part here is that the various percentages apply to different base amounts. Think carefully about what the base amount is in each case.