Puzzles - Logic Puzzle

Original price was: $19.99.Current price is: $10.00.
Original price was: $21.99.Current price is: $11.00.
Original price was: $29.99.Current price is: $15.00.
Original price was: $27.99.Current price is: $14.00.
Original price was: $14.99.Current price is: $7.00.
Original price was: $17.99.Current price is: $9.00.
Original price was: $17.99.Current price is: $9.00.
Original price was: $7.99.Current price is: $4.00.
Original price was: $7.99.Current price is: $4.00.
Original price was: $14.99.Current price is: $7.00.
Original price was: $19.99.Current price is: $10.00.
Original price was: $14.99.Current price is: $7.00.