Hi, gracielu3. According to Temptalia's foundation shade matching system, if you're a MAC NW25 then you would be one of the following in MUFE HD Foundation (just depending on your skin's undertones): 118, 127 or 128.
At least this narrows your choices down to the closest three.
Hope this helps.
Answered[ Edited ]
Hi Gracielu3. Check out the Make Up For Ever Shade Finder to help identify your best match. Simply scroll over the swatches and choose the model that is closest to your skin tone.