Some Carrefour and Wal-Mart stores in China will be fined up to 500,000 yuan (75,987 U.S. dollars) for cheating customers, the National Development and Reform Commission (NDRC), China's economic planner and price regulator, said Wednesday.

The Carrefour Xinmin store in Changchun in northeastern China's Jilin Province sold some men's underwear for 50.70 yuan while claiming the product was originally priced at 169 yuan. The actual original price was 119 yuan, the NDRC said in a statement on its website.

A globe-shaped teapot should have cost 36.8 yuan at the Carrefour Nanxiang store in Shanghai. The cashier rung up a price of 49 yuan.

The offenders will have to return their ill-gotten gains and pay fines five times the illegal income. Those that cannot calculate their illegal income will pay a fine of up to 500,000 yuan.

Consumers can telephone 12358 to complain about price cheats.