Mr. Mayer wants to get a $1000 x 30/100 = $<<1000*30/100=300>>300 profit.
So, he will sell each Corgi dog for $1000 + $300 = $<<1000+300=1300>>1300.
Hence, his friend should pay $1300 x 2 = $<<1300*2=2600>>2600.
#### 2600