I just c&p this from some webpage, anyone good with numbers could be more helpful to the OP or maybe he could work itout himself
Spain’s minimum wage announcements
Update 26 December 2014: The Spanish government is to raise the minimum wage in 2015 by half a percent, equivalent to an increase of €3.30 a month. This takes the minimum wage from €645.30 to €648.60 a month, assuming the traditional 2 extra monthly payments, and so an annual wage of €9,080.40, as opposed to the €9,034.20 it has been for the past two years The government recognized that the rise is “modest”, but said that it was an improvement on last year when the amount was frozen, and that it was now at the rate of inflation or better.