How much does this cost to the nearest dollar?

EDKKIE Lab Compound Monocular Microscope Built-in 5MP Camera with 7’’ Screen, Wide-Field 10X and 25X Eyepieces, Dual Illumination System, Double Layer Mechanical Stage
Fully rotatable monocular head with 53 to 77mm inter-pupillary adjustment. Comes with pairs of 10X widefield and 25X widefield eyepieces. It's perfect for sharing or for one-on-one teaching sessions in class. 4PCS pure copper DIN 195 Achromatic objectives in a revolving 10X, Offer 6 magnification levels 40X, 100X, 250X, 400X, 1000X, 2500X. Included is a built-in, non-removable 

Price is $290.00
Price: $289.99