If that 12.5% from the company is a match, then I would do everything I could to contribute 12.5%. Where else can you instantly double your money with no risk?
If the 12.5% is unconditional, then my guideline is to contribute at least 10% of my gross to long-term savings. At your present salary, that would be about $340 a month, or $85 a week. It could be much more, if you are able. For my first year of working, due to low living expenses, I was saving 50%.