Need Urgent PHP Help

We need some help on my website that has Ajax, JQuery, and PHP coding on the back end to run calculations. to give you a sense of what we need, it's a social security calculator, and the basic site is built and functioning, but we need some help making some edits to the code. I believe it's mostly PHP help that we need at this point. If you are available and willing to work fast, please let me know and I'll provide you further details to move on. Note: Most of the things/changes needs to be done today, so don't bother applying if you cannot start IMMEDIATELY. P.S. Although it's a short project, but for the right person there will be regular work from us! Thanks.