Unless there has been a specific request to include your salary requirements on your cover letter, this is a matter that is best left for future discussion.
If you just want to make a potential employer where you stand, it works well to state that you do not want to make a lateral move, or that you are looking for a position with advancement in opportunities and income.
I recently went through negotiating a change in employers and did not reveal what my current requirements were until all interviewing was complete and the negotiation stage began. When we began I told them what I was currently making, by the time they made an offer (6 weeks had passed) I had been given a $3 per hour raise. Needless to say when I received their offer it was more (even with the raise) but not enough to justify me changing jobs. When I declined their offer, they called and I was able to explain the raise. They made a counter-offer which went beyond the raise and I accepted.
Good Luck and Just remain (and display) confident in your negotiations.
If you just want to make a potential employer where you stand, it works well to state that you do not want to make a lateral move, or that you are looking for a position with advancement in opportunities and income.
I recently went through negotiating a change in employers and did not reveal what my current requirements were until all interviewing was complete and the negotiation stage began. When we began I told them what I was currently making, by the time they made an offer (6 weeks had passed) I had been given a $3 per hour raise. Needless to say when I received their offer it was more (even with the raise) but not enough to justify me changing jobs. When I declined their offer, they called and I was able to explain the raise. They made a counter-offer which went beyond the raise and I accepted.
Good Luck and Just remain (and display) confident in your negotiations.