A Calculator Costs HOW Much? Your Most Expensive School Supplies

$688.62.

That is the amount the average person with children in grades kindergarten to 12th grade is expected to spend this year on back-to-school shopping, according to the National Retail Federation's annual back-to-school spending survey.

Last year, the survey predicted families would spend $603.63. 

Parents surveyed said they would spend the most on clothing, accessories, and electronics this summer as the first day of school approaches.

The survey found the average person with children in grades K-12 will spend $246.10 on clothes, $217.88 on electronics, $129.20 on shoes, and $95.44 on school supplies — such as notebooks, pencils and backpacks.

In addition, about six in 10 people said they would invest in some sort of electronic device, according to the survey. This is up from 51.9 percent who planned to buy an electronic device last year.

We asked our Facebook fans which supplies cost them the most this year. Here's what they had to say. Which cost you the most? Any good deals? Tell us in the comments. 

• Michelle Bechstein: Calculator for my son for high school $90.... That was on sale :(
• Margaret Ellyn Johansen: Dragon Ball Z Bag for my son. Ordered it on line & with shipping & everything it came to about $40.00. He's only about to turn 10!!
• Lisa Opoka DeVries: I didn't find the advertised deals this year. I was at one store and purchased crayons for 80 cents only to go to another store and see them for 50 cents. Oh well. And crayons were not the only item like this.
• Madeleine Budil: MacBook for college
• Sarah Weller Ericksen: Fees, laptop, calculator, High School Yearbook...although my kindergartner's 18 glue sticks came in a close 2nd at most expensive items (j/k). I really didn't find the deals like I have in the past & the stores are a wreck this year too.
• Chuck Chamberlain: Laptop, bedding, fridge, microwave, coffee pot...for college dorm. Not to mention the $1k in BOOKS! LoL.... Now a sophomore, and able to have a car at school, so that's next. UuUgGgg! Haha
• Lisa Opoka DeVries: I didn't find the advertised deals this year. I was at one store and purchased crayons for 80 cents only to go to another store and see them for 50 cents. Oh well. And crayons were not the only item like this.