My EIC for 2018 is only $7.00 vs. the $2492.00 I received in 2017. I qualify with an income of $40,000 and have 2 qualifying dependents. What is going on?

More than just your Earned Income goes into the calculation of the Earned Income Credit.  

Non-earned income such as scholarships, unemployment compensation and investment income that are included in your Adjusted Gross Income (AGI) also factor into the calculation.  

The Earned Income Credit is first calculated (looked up in the EIC table) based on your earned income. Then, it is calculated based on your total income (AGI). You get the lesser of these two calculated EIC numbers. 

Click here for the 2018 EIC Table (scroll to page 30): IRS Pub 596: Earned Income Tax Credit.

Click here to view the IRS calculation worksheet for the EIC: 2018 EIC Worksheet.

If you need further clarification, please comment below so that I can assist you further.