How much does this cost to the nearest dollar?

OLLGEN Mini Weigh Digital Pocket Scale Portable Jewelry Gram Scale with Backlight LCD Display Tare and PCS Features 3000 x 0.1 Gram
Description This digital pocket scale weighing accuracy and easy to use and carry. It is an indispensable tool for making cookies at home or weighing jewelry. Small size, ideal for travel use. Feature 1. Maximum Capacity Accuracy 0.1g. 2. Units g, oz, ozt, dwt, ct, gn. 3. Key Function ON/OFF, UNIT, PCS, TARE. 4. Display LCD display with blue backlight. 5. Auto Off 60 seconds of inactivity. 6. Power 2 AAA batteries(is included). 7. Operation Temp 10℃ ~ 30℃

Price is $21.00

Price: $20.99