When I was updating this page, then coupon price was 23.99 USD for Calculator with Writing (in Banggood). Go down and check coupons out. Remember to check price history if it is available. Do you want to know what the best price is?
Latest coupon and price update (UTC):
Banggood (23.99 USD)
Banggood warehouse is located in China. I couldn’t find any coupon for this product on latest product update. You probably want to know if this is a good price. Well, this price is higher than average price (22.24 USD)
Link: Banggood product page
Price: 23.99 USD
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
There were country-specific coupon codes published on Couponsfromchina social channels and price alerts. Coupon price may vary by country, because there’re different VAT rates, shipping cost etc. There is a chance that some latest coupons are still working:
Coupon (3.4.2024, $18.99): BG2c32aa
Item: NEWYES 991ES 6.5 Inches Scientific Calculator with Writing Tablet
Countries: CzechRepublic, Greece, Hungary, Poland, Portugal, Slovakia(SlovakRepublic), Spain
Old coupons (from the oldest to the newest): BGfacf87, BGc4a05f, BG4c068d
(I don’t think these’re gonna work, but you can try ’em out anyway)
Aliexpress
Here are coupons that you can use.
Price history and price alert
Here is price history (for all/most countries) for NEWYES 991ES 6.5 Inches Scientific Calculator with Writing Tablet.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).