A grocery store rewards it's Loyalty card members based on how much they have spent in the past. The POS system's testing function uses money as a decimal zero or greater than zero with 2 digits after the decimal (ex 0.00 or 4.33 etc). If the customer has spent $200 or more in the past they get a free gift.

What arethe optimal (effective and efficient) set of boundary test cases for the above situation?