**brennanmorrow**trying to work the equation field. I am stumped on this.

- JotForm Support
**EltonCris**Thanks for the video explanation, we apperciate it.

The problem was, some of your calculation formula is in string format (brown), switch it to black so they function as a calculation formula.

Here's how:

All the brown should be in black and remove the space (empty brown). The last equal sign is also not necessary.

Let us know if require further assistance.

**brennanmorrow**thank you so much that works.