That's right. The DNC has a website where you compare your tax rate to Romney's. See Mitt Romney on taxes.
Mitt Romney pays a lower tax rate than many teachers, firefighters, police officers, and other middle class Americans, a policy he would continue if he becomes President.
For example, a married couple that earns $75,000 and has children would save $2,400 if they paid Mitt Romney's income tax rate
It uses 14% as the estimate for Mitt Romney's income tax rate.
While the website doesn't allow for a precise calculation of your given situation, it provides a ballpark figure and clearly illustrates the problem with GOP tax policy. You can calculate the savings for married couples with or without children and for individuals. The available income levels are 50K, 75K, 100K and 150K.
A single person that makes $50,000:
Savings if they paid Mitt's rate: $4,300
The website is short and sweet and more people should know about it:
Our country has always asked the most fortunate families to pay a little more not a lot less, but Mitt doesn't play by the same rules as the rest of us and he wants to keep it that way.
President Obama proposed the "Buffett Rule" so people making more than $1 million a year do not pay a smaller share of their income in taxes than middle class families do.