Pat, an individual calendar-year taxpayer, purchased 1000 shares od R Corporation common stock for $17,000 on 5-13-x1.

She purchased an additional 250 shares of R corporation common stock for $7,000 on 6-9-x5.

On 6-28-x5, Pat sold the 1000 shares which purchased on 5-13-x1 for $13,000.

Then on 7-16-x5 she purchased an additional 450 shares of R corporation common stock for $9,000

What is the amount of Pat's recognized loss for x5 and what is the basis for her remaining 700 shares of R corporation stock? (The answer been given, how how to calucated to getthe answer)

The recognized loss: 1200

Basis for 6-9-x5 stock: 8000

Basis for 7-16-x5 stock: 10800