Sup biggy
We have a perfect article for this actually as it is a frequent question:
http://www.chronicfitness.com/weight...the-scale.html
Remember that as you lose weight from cardio or weight lifting, you will be gaining muscle mass too. Muscle is also heavier than fat so this causes issues when it comes to the scale.
Try judging your progress by the way things fit on you, how you feel, and if people compliment your progress
all the best
gB