Last week, your cafe sold $4,300$ cups of coffee. Demand is expected to decrease by $10\%$ for every $5\%$

increase in price. Your current price is $$3\mathrm{.}40$ and you are considering raising your price to $$3\mathrm{.}60.$

What is the percent price increase?

$\%$

What do you expect demand to be after the price increase if nothing else changes?

cups