Employee Embezzlement 'Confession'

My question involves criminal law for the state of: California, 508 PC

I worked at a pharmacy retail chain as a supervisor. I was detained by loss prevention and accused of taking approximately $700 at different times from the registers using manager overrides. The most they could actually show that I took was around $300, but due to my own panic and their suggestive questions and comments they got me to confess to the entire $700. Stupid of me, I know, but during my statement they gave vague assertions that if I cooperated I might get a second chance, etc. so I foolishly cooperated. I didn't realize the true seriousness of the situation until I was being cited by the police.

I AM getting a lawyer soon, but I was wondering whether my 'confession' will be damning regardless of the actual evidence (which is scant), or if there is a chance I can dispute it.

Thanks!

That's something you'll have to discuss with your lawyer. We weren't there, and we can't read your confession from here. But confessing to stealing $700 vs. $300 makes little difference to your criminal case.