Shops often try to set prices daily in their local currency, for the limited items they stock, and typically also have separate dollar prices. Many items can't be kept in supply with hyperinflation, so stores tend to dramatically narrow what they carry. They also have adjusted to selling far smaller portions of goods (less risk and consumers can't afford as much). All of that is usually still not enough once inflation gets bad enough, it becomes an impossible juggling act, most get wiped out. The demand collapse that has gone along with the hyperinflation has killed a large number of businesses, shops, manufacturers.
From the Wall Street Journal [3]:
> Giuseppe Cordivani’s factory on the outskirts of the capital used to make nearly 300 pairs of women’s shoes a day, from pumps to high-heeled dancing shoes that sold nationwide. With hyperinflation biting, he’s making just 20 today.
> “No one beats hyperinflation—no one,” said Mr. Cordivani, whose father founded the company 55 years ago. “We work just to try to cover our expenses.”
> A 2 million percent inflation rate is ravaging savings and salaries, devastating a once-vibrant manufacturing sector by suppressing demand.
> A handful of food plants are still producing but at minimal capacity. Food prices nearly quadrupled in January alone, according to Caracas-based Ecoanalitica. With shoppers buying only the most basic products, demand for canned tuna, milk, cereals for children and other products has fallen more than 80% since 2012, according to household polling by the Caracas pollster, Datanalisis. Consumption of meat fell nearly 60%, the polling shows, while demand for chicken dropped 74%.
> a family of four that bought food and covered other basic on the equivalent of $105 in December 2017 would now need more than $700, said Asdrubal Oliveros, an economist and director of Ecoanalitica.
[1] https://www.cnbc.com/2019/08/02/venezuela-inflation-at-10-mi...
[2] https://www.cnn.com/2019/05/29/economy/venezuela-inflation-i...
[3] https://www.wsj.com/articles/hyperinflation-shatters-venezue...