# Cheese sticks that were previously priced at "5 for $1" are now "4 for$1". What is the percent change?

Previously 1 was priced = $1/5. and now 1 is priced =$1/4.
So change of price for 1 = $\frac{1}{4} - \frac{1}{5} = \frac{5 - 4}{20} = \frac{1}{20}$