If prices increase 3% each year for 10 years, then a jacket that costs $80 today will cost $107.51 in 10 years. So the percentage decrease in the buying power of currency over the 10-year period is?
$${\frac{{\mathtt{27.51}}}{{\mathtt{80}}}}{\mathtt{\,\times\,}}{\mathtt{100}} = {\frac{{\mathtt{2\,751}}}{{\mathtt{80}}}} = {\mathtt{34.387\: \!5}}$$
34.4%
I think that is what the question is asking.
