The restaurant is a famous local chain restaurant serving western food and their set lunch is popular among the working class for its value for money. Each set meal comes with soup with a slice of garlic bread, main course, dessert and coffee/tea.
As with any other businesses, this restaurant is also faced with inflation and rising costs. And so the prices for their meals have been moving up north. From less than $10 for the cheapest set lunch to at least $12 for the same item.
So have prices gone up again since these two persons last visited?
Seriously, they couldn't remember. Maybe prices are still the same. Maybe they've gone up a few cents again.
What they noticed this time is the garlic bread has become thinner and the creamy soups are more watery.
Your customers can remember things you never think they will remember.