What does a consumer's real purchasing power refer to?

A consumer's real purchasing power refers to the amount of goods and services that can be bought with a given income, adjusted for the effects of inflation. It reflects the true value of money in terms of what it can actually purchase, rather than just the nominal amount of income. As prices rise due to inflation, real purchasing power decreases, meaning consumers can afford less with the same amount of money. Conversely, if prices fall or incomes rise faster than inflation, real purchasing power improves.