Countertop damage costs

[Michael Nahm]

Once more, seeking BP wisdom.

I just had a solid tenant move out after nearly 4 years (always paid on time).

The rental was left in less than desired shape, and one of the issues I’m having trouble assessing cost for, is the kitchen countertop.

I’m attaching a picture, because it is difficult to describe. 

I’m wondering if this is fixable or whether I should change the countertop (the kitchen isn’t very large, standard condo size, so countertop isn’t grandiose). 

Also wondering what I should deduct from the deposit since the countertop isn’t new, however, it was immaculate when the tenant moved in.

Any advice welcome.