November 2011 discount:

Roast brain flowers

The original price 26 yuan/cases

Present price 18 yuan/cases 

In July 2011 discount:

Taste shrimp (new dish listed)

The original price 68 yuan/cases

Present price and yuan/cases 

In October 2011 discount

Taste pig's knuckles

The original price 38 yuan/cases

Present price 22 yuan/cases