Hey Shray,
The appraisal depends on the quality of work you are providing and also by the policy of firm in which you are working .
There should be an appraisal of minimum 10% but again read the policy of the company before discussing it. You can ask them the reason why they are not giving you the appraisal.
The reason they have mentioned you before was inappropriate.Your appraisal doesn't depends on your previous appraisal it depends on the quality of work you are providing them and the output they are earning from your work.
Stay Calm .
Gautam Dwivedi