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Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. We have found one coupon for this product!
Link: Banggood product page
Coupon (69.99 USD): 13f142
(CouponsFromChina.com tip: paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): bGhOnEy10, bgshOOp10, BGHome15%, BGHOMEAPP13, BGHOMEA13
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Price history (for all/most countries) for Xiaomi Liven DHG-X451 Eletric Skillet Hot Pot 1500W 4.5L is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).