How much does this cost to the nearest dollar?

Dolphin.dyl(TM) Replacement Individual Key Keyboard for US Retina Display Pro A1425 A1502 A1398 A1466 Replacement Key Keyboard Up Arrow/Down Arrow (New Version)
Compatible Model number Some models use an another version of the keyboard and are not compatible. Please make sure that the white plastic scissor hinge is exactly the same as the one in the picture. If you are unsure if the key will work for you please send a message with picture of either the area on the keyboard missing the key or a picture of the back of the key with the plastic hinge attached. Manufacturer Dolphin.dyl, model number Rank Computer Keyboards 9617, Is Discontinued No, Available December 22, 2016, Brand Dolphin.dyl, Compatible Devices Laptop, Style

Price is $10.00
Price: $9.99