The total fee is application fee+stamp duty+annual fee, and the fees are 500, 205 and 600 respectively. If it is an individual application, the above first and third fees can be reduced by 85%. If you entrust an agency to apply, you still have to pay an agency fee, and there is also a certain gap in the fees charged by various companies.
The example you cited is infringement. Design protects the external shape or pattern of the product, and is not limited by size.