The phrase "affect the prices at" is correct and usable in written English.
You can use it when discussing how certain factors or events influence the pricing of goods or services in a specific location or market.
Example: "The new tax regulations are expected to affect the prices at local grocery stores."
Alternatives: "influence the prices at" or "impact the prices at".
This legislation will affect the price at which the centre sells grain to the states, and those with larger programmes will end up having to buy from the open market to top up their requirements.
Ms. Chen said the absence of a deduction was not likely to affect the number of homes sold at the high end because wealthier buyers would most likely still want to own a nice home (though it might affect the price, at least in the short term).
Everything is high quality, and while that can affect the price at times, those who shop here can trust they are getting the best.
These are two benchmarks that are the basis for pricing an array of financial products, potentially affecting the price at which households and businesses borrow money.
After the turmoil caused by the decision by ratings agencies to downgrade the sovereign debt rating of Greece, the agencies tried to calm concerns that the UK's top-notch triple A rating – which affects the price at which the country can borrow – was under immediate threat of a downgrade.
In addition to these efficiency consequences, news also has distributional consequences by affecting the price at which shareholders trade.
Media captionHow will the VAT rise affect the prices families pay at the till?
"Their power bill is going to go up, but it also will start to affect the prices of goods they buy at the grocery store," he added.
While the discovery won't immediately affect the price of petrol at the pump – which is governed by the global price of oil – it could swell tax coffers and boost UK jobs in the beleaguered UK oil and gas sector.
