Loosing weight slowly need more motivation?

I started loosing weight before 2 months nd loose 8 kgs.. My current weight is 92kgs.. it's been a week now i haven't loose a pound..It demotivated me..i go to gym daily n loose 500 cal per day.. please tell me why i am loosing this slow because my calorie intake per day is 400 to 500 calories..thanks