How much does this cost to the nearest dollar?

Dentsing CP03XL 11.55V Laptop Battery Compatible with HP Spectre x360 13 Convertible PC Series
Customer Service Rest assured with 60 days Refund and 12 months Warranty; Note Amazon return windows will close after one month, don’t worry about it, you can click on seller store on right corner “ask a question” and contact seller directly. Basic Details Item Model Battery Type Li-ion; Voltage Capacity Battery Color Black. Replacement P/N CP03XL. Compatible Laptop Models HP Spectre 13 X360 Series Note The package includes 1X CP03XL battery, instruction manual. Before purchasing, please open the back cover of the laptop to confirm the battery model and capacity Dimensions 13.5 x 5.59 x 1.26 inches

Price is $40.00

Price: $39.99