How much does this cost to the nearest dollar?

FlexPedic Fluid Gel Infused Memory Foam Mattress Topper… (2Inch Blue, Twin)
Fabric MACHINE WASHABLE & ANTI-SLIP BOTTOM - The cover adopts skin-friendly knitted fabric, which is light and anti-static; It has adjustable elastic straps and an anti-slip bottom to prevent sliding and a premium zipper for easy removal and machine washing REMOVE MOISTURE & ALLEVIATE FATIGUE - Polyurethane foam contains bamboo charcoal fiber, which can remove moisture and absorb sweat, promote human blood circulation and metabolism, and alleviate fatigue Relieve Stress and Protect the Spine - Double-layer pressure-relieving Camouflage and Bamboo Charcoal Memory Foam that conforms to your curves, and distributes weight evenly to align the spine and alleviate pressure points Removable & Washable & Ventilated

Price is $78.00

Price: $77.99